15 MINUTE Study Guide for Geometry 1 Final Exam

20 questions from an actual final exam worked out step-by-step.
✴️Watch next to review triangle proofs • SAS Proof Walkthough
Time Codes
0:00 Intro
0:19 Segment Addition
1:16 Angle Addition
2:10 Identify Angle Pairs
2:52 Central Angles
3:15 Complimentary Angles
3:43 Angle Bisectors
4:17 Parallel Lines and a Transversal
4:35 Same Side Interior Angle Problem
5:28 Alternate Exterior Angle Problem
6:19 Classify Triangles
6:45 Triangle Sum Theorem
7:05 Exterior Angle Theorem
7:27 Congruent Triangles Problem
7:45 Isosceles Triangles Problem
9:26 Pythagorean Theorem Converse
10:38 Identify the Congruency Theorem
11:13 Complete the Congruency Theorem
11:53 Angles in Quadrilaterals
13:17 Angles in Parallelograms
14:08 Diagonals in Parallelograms
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✏️Thoughts? Would you do it differently? Questions? Request for a certain math topic? Leave a comment! I'd love to hear from you!
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[@zorkall]

I have a test in 1 hour. This helps so much, taught me more than something I learned in half a semester.

[@doesmathforcoffee]

I'm glad it was helpful. I hope the test went well!

[@_EWM_304]

Did you pass?

[@zorkall]

@@_EWM_304yes i did

[@_EWM_304]

@@zorkall nice 😎👍

[@eveeeell]

No way me too

[@averagekaijuuniverseplayer9687]

I’m rewatching this video tmr when I wake like 5 times over so I can get locked in before the Leap test but bro. Teachers make this shit more complicated than what it needs to be, they dont explain stuff like this. This helped me understand wayyy more than I do even when the teacher physically “helps” me. I really appreciate this and you’ve got my subscription 💪🏾🙏🏾

[@doesmathforcoffee]

Thank you! Good luck on your test. I'm glad I could help.

[@FoCust-qu6nm]

I have a test in a couple of hours and it amazes me how so much of what I failed to learn the entire semester is in a simple and easy to understand 15 minute video

[@doesmathforcoffee]

Good luck on your test!

[@user-yk5sg1en5y]

Anyone else prepping for finals ?

[@chennareddy4400]

I am preparing 30 minutes before the exam

[@poopypants_edits]

yep night before the test

[@Gabriel_JudgeofHell]

today

[@Ziroswimming]

I’m taking the Geometry CBE

[@carnelianknight5713]

I've been effortlessly breezing through geometry and Tomorrow's my regents exam and I KNEW I would forget a thing or two from the school year. This video is incredible and packed into bite sized packages that my short attention span can work efficiently with. And the timestamps are a big bonus as I found the central angle part to be a great refresher and now I can say for certain that with enough caffeinated beverages and the skills I've been able to polish with this videos I'm gonna ACE that regents!!!

[@doesmathforcoffee]

Glad I could help!

[@Lenanyc]

I have regents in like 3 hours and 30 mins

[@doesmathforcoffee]

I hope it went well!

[@swirltz5217]

my final exam is tmrw this is a live saver thank you

[@doesmathforcoffee]

Knew I had to get this done today for somebody. Good luck tomorrow!

[@Sofie364]

how'd it go??

[@TWJ4EVER]

How did it go bro

[@z.martin21]

ive been struggling w geom so bad, i pulled my grade up from a 50 to a 69. and i passed the final w a 70. so tysm. 💓💓

[@doesmathforcoffee]

Nice job! A 70% on a final is hard to do.

[@z.martin21]

@@doesmathforcoffee thank you. ill definitely be coming back to your channel next year.

[@lia-ww5ww]

my exam is in an hour and im so nervous 😭😭ill update this when i get my score, i hope this video works

[@doesmathforcoffee]

Good luck!

[@AU-ue8yn]

My final is tomorrow and I'm scared I won't get an A but after watching this I'm a little more confident! Thank You!

[@doesmathforcoffee]

You’re welcome and good luck!

[@SlushLoveable]

Thank you so much for posting this. My teacher was absent for two week prior to the finals and we barely learned anything! I needed this sm :]

[@doesmathforcoffee]

Glad it helped!

[@samvithmahadevan6860]

I have a test first thing tomorrow morning. I was feeling a little shaky on some contests but this gave me a great refresher!

[@doesmathforcoffee]

Good luck on your test!

[@emmanueldavid118]

11:12 AAS is the answer. We are given ASA but by Triangle Sum, the third pair of angles are also congruent so it is also AAS.

[@doesmathforcoffee]

Good catch. Thanks!

[@CLAPPZY5]

I have my exam tomorrow and I stressing about it but this helps so much. should I watch you second video to get a better understanding of it?

[@doesmathforcoffee]

The second video is for the 2nd half of the course.

[@ohhhhdear]

I LOVE YOU!!!! SAT tomorrow and i just needed a review, thank you!

[@doesmathforcoffee]

You're welcome! Good luck on the SAT!

[@sreea.5716]

I'm doing geometry over the summer to take pre-calc in freshmen year and it's been kinda confusing but this video was SO helpful. Thank you!! My test is tomorrow!

[@doesmathforcoffee]

Glad it was helpful! Good luck on your test!!

[@CosmicBrownie35]

Just why

[@tintin4671]

you're literally amazing!! THANK YOUUUU 🙏🏻

[@doesmathforcoffee]

You're so welcome!

[@Indyanas_ocean_view]

Super informative! Thanks for sharing! 🤓😃

[@doesmathforcoffee]

You're welcome! Thanks for watching!

[@jenni-dg7fj]

i have my test on friday. this helped me a lot, thank you!!

[@doesmathforcoffee]

You’re welcome and good luck!

[@erastourtaylorswift]

guys i have my eoc in like 2 hours and i’m so nervous for it so i searched up how to pass and have been watching it. so helpful!!! thank you

[@doesmathforcoffee]

I hope it went well!

[@erastourtaylorswift]

@@doesmathforcoffee THANK YOU SO MUCHHHH!!!! I GOT A LEVEL 4 AND I THOUGHT I FAILED BUT I DEF DIDNT. THANK YOU

[@doesmathforcoffee]

Nice job! You did that, but I’m happy to have helped a little.

[@vernicarocks1]

what would you say to study

[@oliviaseaa]

dude ur so reall i feel like ima fail i have mine tomorrow but this video has been helping sm! ill update on my score when i get it

[@Catandrawolfgamer420]

Thank you for paying attention in your school ❤️❤️ I'm trying to pay attention as well but it's difficult, thanks for this run through as well

[@doesmathforcoffee]

You are so welcome!

[@L0afingAr0und]

I have a test in like.. 20 mins. Needed a quick review, this helped a ton! Hoping to pass!!

[@doesmathforcoffee]

Glad it helped!

[@L0afingAr0und]

@@doesmathforcoffee UPDATE : I passed!

[@doesmathforcoffee]

YAY!!!! Good work. And thank you for coming back to tell me. (My own students have been crabby, so my KZbin kids are cheering me up this week.)

[@techedtuna5676]

I take my geometry eoc tomorrow currently cramming so far I’ve learned way more than what my own teacher has taught me

[@doesmathforcoffee]

Good luck on your EOC! I hope it goes well.

[@maximumgoof]

DID U PASS

[@TWJ4EVER]

Yo did u pas

[@Ash-us3gs]

chat can we get an update or what’s good

[@joobies]

you explain things so well tysm

[@doesmathforcoffee]

You’re welcome! Thanks for watching!!

[@jayjayzgang2089]

Dude this helped so much thanks 😭😭

[@doesmathforcoffee]

No problem 👍

[@50i725]

thank you this helped a lot

[@doesmathforcoffee]

Glad it helped!

[@pulsrr]

I quite literally have midterms in two hours (its 5:41 AM rn) and I havent studied... This is a big help and was really useful to me. Thanks for the amazing video!

[@doesmathforcoffee]

Happy to help. Hope it goes well!

[@pulsrr]

got a 89% lol thx@@doesmathforcoffee

[@Ytarc.]

What did you get?

[@TWJ4EVER]

Yo did u pass

[@Ytarc.]

@@TWJ4EVER I passed what bout u?

[@iwannatrykimchi4802]

this is nicely done i enjoyed this

[@doesmathforcoffee]

Thank you very much!

[@anubhavchatterjee3258]

thank you will need this for next year

[@doesmathforcoffee]

You’re welcome!

[@alexro.producer]

really helpful vid!!

[@doesmathforcoffee]

I'm glad! Thanks for watching!

[@wywywantssomefrenchfries3609]

thank you so much im gonna study like crazy and pass this test 😊

[@doesmathforcoffee]

You can do it! Happy to help.

[@scwoutt]

TYSM I PASSED THIS HELPED. IT WAS SUCH A GREAT REFRESHH OHMMLL

[@doesmathforcoffee]

Good work! Happy to help.

[@_EWM_304]

Thanks for this I have test tomorrow!

[@doesmathforcoffee]

You’re welcome! Hope it goes well.

[@thiagomotta777]

I'm starting learning geometry from scratch. Ive never been taught this in school, thanks

[@doesmathforcoffee]

When I went back to college 10 years after high school, I taught myself geometry from books. Maybe that’s why it’s my favorite topic to teach? It’s a good place to start.

[@alliecirina4353]

i have a regents exam in the morning i hope i pass!!!

[@doesmathforcoffee]

I do too!

[@luken1022]

After some unfortunate events when I was 18 I had to drop out and start working, 7 years later I am trying to get my highschool diploma. I failed geometry so many times in highschool i cant even count it anymore. I finally passed the class with this program I am in and go take my EOC exam or graduation test in 13 days. The practice test the state of ohio gives has a lot of things that arent covered in the geometry class I took and it scares me to death im gonna be stuck back at square one of trying to get my diploma if anyone has any resources to help me go more in depth with what is required by my state please let me know Ive searched youtube and these videos are the best I have found. I will use this video and the geometry two video to try and help me pass this exam but any more resources to help would be a blessing. Thank you for helping me and the kids still in highschool prepare for things like this

[@doesmathforcoffee]

It is so impressive that you're going back to tackle this as an adult. Most don't. You're a badass for that reason alone - don't forget it. I don't live in Ohio, so I can't give you any insight about that exam. But I can tell you that even though I made these videos for anyone anywhere, the students in Florida have said my geo review is helping them pass their EOC - I don't live in Florida, either. Remember - you don't need to get all the questions right to pass. The big ideas of geometry don't change from state to state.

[@luken1022]

@@doesmathforcoffee you have definitely helped me get a few things I had trouble understanding. So I really do thank you for that. The practice test for here has questions that aren't even covered by khan academy for geometry and it was the most prevalent question on the test other than two column proofs which is something else I have some difficulty with I've added your geometry videos to my playlist that I'm using to try and prepare myself for the test. I'm not looking for perfection as long as I pass but I appreciate these videos so much

[@sugarspiceNdeverythingnice]

i have a final exam in 2 hours and i’m doing an old regents packet whilst watching this and it helps so much thank you 🤍

[@doesmathforcoffee]

You're welcome! Good luck!!

[@AlessandraGuardiola]

bless u sm omg

[@doesmathforcoffee]

Thanks!

[@MikeBoi-mt7sy]

Thank you so much, I have a Geo CBE test soon and this helps so much. Like this comment to wish me luck!

[@doesmathforcoffee]

Best of luck!

[@kath5989]

watching this 1 hour before the eoc ooooo edit:got out already, i will say what i got but dont wait too much :]

[@doesmathforcoffee]

I hope you passed.

[@TWJ4EVER]

What u got

[@ActuallyDisturbed]

My eoc is tomorrow and im scared because ive been struggling all year and i cant understand other forms of teaching when it comes to math, thank you 🙏

[@doesmathforcoffee]

Hope this video helped - good luck tomorrow!

[@JuliansInsaneLife]

My end of course exam is tomorrow, thank you so much for this!!

[@doesmathforcoffee]

You’re welcome! Good luck tomorrow!!

[@CosmicBrownie35]

What u get

[@JuliansInsaneLife]

@@CosmicBrownie35 86%!!!

[@JuliansInsaneLife]

@@doesmathforcoffee I got a 86% thank you!!!

[@doesmathforcoffee]

Nice work. 👍🏼

[@woahguysthisiscrazy]

I love you thank you SO MUCH taking geometry honors is not for the weak 🙏🙏😣

[@doesmathforcoffee]

No it's not. Honors courses in math are great, but they will push you.

[@TiredDayz]

For the first question on angle postulate, would you still get the same answer in a different question if you subtracted the 7 and 19?

[@doesmathforcoffee]

Can you give me a time please? I'm not sure which question you are asking about.

[@TiredDayz]

@@doesmathforcoffeeit’s the segment addition, first problem in the video

[@doesmathforcoffee]

Thanks for clarifying which question. If I understand your question correctly, I’d say no. The -7 and -2 are on the same side of the equation so I combined them. I could have added 7 to both sides in one step then add 2 to both sides in a separate step. But since they are both negative to start with, adding cancels them from the left side.

[@whizzerwins]

my eoc is today you are a life saver

[@doesmathforcoffee]

Good luck!

[@garrenthomas1103]

Can’t lie your teaching better than teachers they make things so complicated

[@doesmathforcoffee]

Thanks! The problems can get complicated, but I've found my students will handle harder problems just fine if they understand the concepts.

[@lavenmoss]

I have mine in two hours, so nervous!

[@doesmathforcoffee]

Good luck!

[@NihilisticOutlook]

I’m studying for a test in one hour, thanks!!

[@doesmathforcoffee]

Hope it went well!

[@NihilisticOutlook]

@@doesmathforcoffee it did!!!!!!!!

[@zaeemchogle8219]

11:12 , i noticed you said none of these is the answer, even though 2 angles are equal and 1 side is equal. so the answer would be AAS

[@doesmathforcoffee]

The order of the letters matters. For AAS, the congruent side will not be between the angles. For this example, the given info has the side between the angles so it is ASA to prove the triangles are congruent. We then can assume all the other parts are congruent, but you can’t do that right away. Love your comment because it is a common question.

[@kyleii]

taking this tommorow

[@doesmathforcoffee]

Hope it went well!

[@oliviaseaa]

i have my eoc tmrw this was literally a lifesaver oh my lord!!!! in addition to this video im praying but this helped sm and ill update if i passed or not

[@doesmathforcoffee]

Good luck! I hope you pass!

[@user-oz2nv4xs2v]

me too good luck:)

[@oliviaseaa]

@@user-oz2nv4xs2v tysm and good luck to u too!

[@oliviaseaa]

@@doesmathforcoffee tysm!!🫶🏽

[@TWJ4EVER]

Did u pass

[@charana538]

extremely underrated

[@doesmathforcoffee]

What's underrated?

[@charana538]

@@doesmathforcoffee your videos, by "extremely underrated" i meant that your videos need more people watching because they are amazing videos

[@doesmathforcoffee]

Thank you! I appreciate that. I just want them to be useful. Math can be frustrating to learn.

[@vae2687]

You have a very nice voice. 🥰

[@doesmathforcoffee]

Thank you!

[@MMWMWMMWWMWMWMWMW]

This is gonna help me in my enterance exams! ; also do u have like a sheet that has all of this?

[@doesmathforcoffee]

I'm glad it will help. Sorry - I don't have a hard copy available.

[@MMWMWMMWWMWMWMWMW]

@@doesmathforcoffee It’s fine i’ll just note down everything in the vid, thanks for making these videos!

[@doesmathforcoffee]

You’re welcome!

[@user-ri6rn7ti5h]

86x,+86x- 172x/ 86x45x+45x- 90 /45x (172x-90)= 82

[@user-ri6rn7ti5h]

(3x+2)° 40= 120x + 80 = 120x-80- (240x +160x )= 400x

[@RandoFr558]

This helped me and my friend a lot for last minute studying.

[@doesmathforcoffee]

Thanks! Glad I could help.

[@user-cl8jk2ny9q]

can i use this for my regents??

[@notraoul9051]

Yes

[@doesmathforcoffee]

I guess so. It's the final exam I gave when I taught geometry, but geometry is the same everywhere.

[@user-ri6rn7ti5h]

=17xb2=18-x-1 = 34x=4x18x+1+ 2x6x2x (x+2x-17) (x+2x-2)

[@anttherant6121]

i got a eoc tomorrow wish me luck i havent payed attention all year but now i kinda understand

[@doesmathforcoffee]

Good luck! Try not to give up right away if you don’t understand the question on the first read thru.

[@anttherant6121]

@@doesmathforcoffee yooo I passed the eoc !!!

[@doesmathforcoffee]

Sweet! Congrats!!!! Thanks for telling me,too. Love it.

[@TWJ4EVER]

What level u got

[@TWJ4EVER]

Or what was ur grade

[@ad1nay926]

thanks for this video im in 8th grade trying to be advance im in pre algebra but im still studying even algebra 2 i finnished studying algebra 1 so i can be advance for 3 years

[@doesmathforcoffee]

You’re welcome and nice to meet you!

[@SkinnyIsSkinny]

I studied for a solid 3 minutes but I still got the highest score!

[@doesmathforcoffee]

speed run study 😂

[@victoriasessions311]

The one with central angles, are you sure that’s correct because 277 + 69 = 346 and then subtract that from 360 is 14

[@doesmathforcoffee]

Go back to that spot and pause. That big central angle is 227, not 277. Thanks for checking though. I make many human mistakes. :)

[@user-ri6rn7ti5h]

227x+ =227x- 454x 69x+69x-=138x (227+138)= 365x

[@janardanrajnarayanan5467]

i knew i was cooked when my teacher said "now we're cooking". man i miss grumpy old teachers

[@doesmathforcoffee]

LOL!

[@user-ri6rn7ti5h]

(x+10x-40)

[@user-ri6rn7ti5h]

(x-2)+2 2x+4=,2x-4. 4x+8!(x,+2x-2) (x+2x-4) 4x+ 4x - 14x+14 x- 8x. 28x. (x+2x-4) (x+2x-7)

[@FBIs]

I PASSED!!

[@doesmathforcoffee]

That’s awesome! Big relief, huh?

[@kaitlyn6594]

I PASSED!!!!

[@doesmathforcoffee]

That’s awesome! Thanks for telling me - makes my day. 😊

[@user-ri6rn7ti5h]

(45+45)= 90

[@abostonfan3684]

Is this 10th grade Math?

[@doesmathforcoffee]

In the USA, yes.

[@abostonfan3684]

@@doesmathforcoffeeok thank you so much I’ve been writing notes on this to Pratice and I’m actually learning thank you so much

[@doesmathforcoffee]

You’re welcome! Glad I could help.

[@user-ri6rn7ti5h]

(86+45)= (131-180) ,= 29

[@4x1um]

Having my test tomorrow wish me luck

[@doesmathforcoffee]

Good luck!!

[@4x1um]

@@doesmathforcoffee thanks i got a 3 meaning i passed (:

[@doesmathforcoffee]

Good job!

[@ashleymuller4534]

I hope I pass, I have it on the 23rd.

[@doesmathforcoffee]

Good luck!

[@732noodle]

sol is todayyyy

[@user-ri6rn7ti5h]

365-5= 360

[@Mikolo_comehere]

I passed my Algebra EOC with a 4 and i’m looking at this to get a glimpse of geometry i might be cooked😭

[@doesmathforcoffee]

I hope not. Good luck!

[@Mikolo_comehere]

@@doesmathforcoffee Lmao thanks though

[@imeldakariko941]

You're fast

[@doesmathforcoffee]

LOL! Only on KZbin. Not that fast in class because they don't have a pause button.

[@LuisTheStranger]

9:44

[@doesmathforcoffee]

One of my favorite geo concepts.

[@michaelderilus4612]

Got a final exam this morning at 10

[@doesmathforcoffee]

Good luck!

[@abby_bellamy]

All of this makes so much sense but I did the eoc practice and it’s not like this 😭😭

[@doesmathforcoffee]

How is it different?

[@-wheatin-]

@@doesmathforcoffee If you look up "Geometry EOC B.E.S.T Practice Test," It's the first one that pops up. Those are what the questions will look like on it. I take mine next Tuesday and so I'm really nervous because everything you did in this video I found easy. Which worries me.

[@doesmathforcoffee]

Thank you! I found it. We don’t use that exam in our state so that’s the first time I’ve seen it.

[@Justastrangerontheinternet2122]

I have my EOC in 1-2 hours. I’m trying to cram any information I can into my brain 😭😭

[@doesmathforcoffee]

Good luck on your eoc!

[@TWJ4EVER]

What u got

[@DL1RST]

I have a test in 1 hour ill let u know guys if i passed

[@doesmathforcoffee]

Good luck!

[@TWJ4EVER]

What u got

[@TWJ4EVER]

Yooo

[@Ash-us3gs]

Bouta fail my exam tomorrow!

[@doesmathforcoffee]

Hope not.

[@OtakuLife-sb6iz]

MY GEO TEST TOMMOR I MIGHT NOT BE COOKED TY

[@doesmathforcoffee]

You're welcome! Hope it goes well.

[@cfctak742]

Did u pass

[@OtakuLife-sb6iz]

@@cfctak742 yes!

[@ya_boy_mellow]

who else watching this before their test tomorrow

[@doesmathforcoffee]

Hope you do well!

[@ya_boy_mellow]

@@doesmathforcoffee i did actually i past gotta say thanks to your video mostly thanks so much

[@doesmathforcoffee]

@@ya_boy_mellow Congrats! Glad I could help a little.

[@Thomas-fk4qw]

my eoc is tomorrow

[@doesmathforcoffee]

Good luck! Hope it goes well.

[@Muark]

Twin we passing or nah

[@TWJ4EVER]

What u got

[@Muark]

@@TWJ4EVER I got a 3

[@braben_exe]

I probably will fail lmao

[@doesmathforcoffee]

Hope not.

[@kaylakeiser-dl3jw]

🪔🫒🫒🙏 Holy Oil 🙏🫒🫒🪔

[@jobisdog]

my regents is in a hour thank you so much my teacher couldn't teach as well as you🤍🤍

[@doesmathforcoffee]

Happy to help