Types of Angles and Angle Relationships

What are angles? What kinds of angles are there and how do they relate? Vertical angles, supplementary angles, complementary angles, corresponding angles, we cover them all in here!
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[@merigrrrl]

When you have a geometry test tomorrow and you understand absolutely nothing

[@callmeswag9242]

Me rn

[@lolatoa581]

@@callmeswag9242 So I'm not alone?

[@sydney3495]

when you're in a geometry test now and don't understand anything

[@aaliyahtally-sierra7858]

The Footman that’s why I’m here

[@J0VyanBH]

sad

[@sarmientoenricomiguelv.562]

How can you objectively dislike his work? He did a fine job Better than many I should say

[@sydney3495]

better than my teacher smh

[@mmmm-445]

this is just so good man this guy saved me from the final exam

[@iAlawneh]

Fr

[@jxstgio8214]

this channel is heaven for people who dont have good teachers

[@abdullahsoomro3443]

All teachers are very good 👍

[@seemicooks3168]

​@@abdullahsoomro3443bro which school do you go to

[@user-lr7sj9vn6n]

True

[@ronex7401]

no one: me in a job interview the manager: before we start how opened is the door me:damn i should've listened in math class

[@daionrodriguez6343]

LMAOOOOOOO

[@wareefff]

right sir you're fired, please leave the building.

[@daionrodriguez6343]

@@wareefff BRO YALL FUNNY

[@wareefff]

@@daionrodriguez6343 lmao ty :)

[@Majesticmex]

2:38 Vertical Angles 4:23 Alternate Interior Angles 4:32 Alternate Exterior Angles 5:06 Corresponding Angles

[@CoolBritishBoy]

ty

[@devendraraj1339]

What a accurate timing 😅

[@yousefawwad4745]

Thanks bro❤

[@Balwinderkaur-st6mk]

Thank u 🙏

[@seemicooks3168]

Nice man tysm

[@jackyliang4939]

This is better than a 2 hour lecture

[@AnikIsGreat]

Thank you so much dude, I’m four years in the future from when this video was published and you still managed to help me clear up some confusion before the test 🔥

[@Z3NTY-]

Dang it I’m one year later than you. You got to him first

[@hephaestus511]

About to do an accelerated Geo test in 20 minutes...if I bomb this I have to drop the class, wish me luck.

[@hephaestus511]

Samuel Acret I dropped the class lol

[@domainii7089]

Rippp

[@ash-sp3nt]

@@hephaestus511 LMAODIWAUSI ME

[@mind-h4i]

Is there anyone here that is just learning for fun?

[@amarareddyjadda3106]

Really we are very lucky to have a proferser like you DAVE

[@Sussyslvt]

I had a little bit of trouble understanding this lesson, but when I actually did the work with what you taught us, it just clicked for me. Thank you!

[@user-ql7qt1dq2z]

Thank you very much for this video!! :) you help a lot of people, including me. 😊

[@jenmlamas5403]

Thankyou this really helped me a lot

[@Thaji_]

Thank U so much U have cleared all my doubts (*watching this video after six years*)

[@Ari_the_hopeless]

Thank you so much dude! You just saved me from sitting through a 1hr lecture and not understanding a word

[@scottmccollough262]

Thanks!

[@cameronbastarache7896]

Hey, just wanted to say you did a great job. But, there is one thing, A cercle has one line

[@ProfessorDaveExplains]

but that's not a line really

[@AslamKhan-tv2ct]

Excellent way of explaination professor

[@kobeplays798]

What grade are yall in? I'm in 7th

[@callmeswag9242]

8th

[@asterios3747]

same

[@sdhaunter9137]

same, doing this for NTI lessons since i understand absolutely nothing (im on my dads acc)

[@kobeplays798]

@@sdhaunter9137 😂

[@volt_clipz7330]

6th

[@marianacosta7178]

Thanks for your video, it helped me a lot w my studies for taking the SAT

[@jainishvadgama7247]

Thank you. This is very important and easy to understand. 👍

[@visualquantum5279]

littrely thanks alot...no word's to describe that how much it helps me......thank you so much ❤️❤️❤️😭😭😭😭

[@leeknow250]

Thank you for the video, well there is something I didn’t understand which is the (angles generated by transversals) thing. I didn’t take this lesson at school yet that’s why it’s hard for me to understand but I would appreciate it if you could please make a video about this.

[@florxz260]

Thank you so much professor this video was super helpful!

[@muhammadzayaanyasir6104]

why are you gae?

[@diavolosbigtiddies5016]

Really helped me for my exam ,Thank you!❤️

[@joud3267]

He is amazing saved me at the last minutes

[@punyanuchjarugosol7307]

I am having a geometry quiz next week and I understand everything just by watching this video than you Professor David

[@bloodypoison]

well, im a 6th grader with an exam tomorrow, this helped a lot! ^^

[@phlippy177]

5:27 omg this is to big for my brain Edit 1: oh 2 likes nice Edit 2: omg 8 likes Edit 3: oml 34 likes noice Yeah count with me Edit 4: omh 36 likes noink How long will this go for xD

[@kassandraranni2838]

PAGaming04 noice

[@viol24130]

I’ll do the next one “omg 11 likes! Nice”

[@itxdori]

Vionnet L. Lol

[@lunamonir3073]

woah look 32 likes

[@mayaavabennett3090]

"oh mY 35 likes neacceee"

[@omarisaintjuste1665]

Thank you this video was very helpful

[@kyleandrei3444]

This really Helped me With my module

[@maryamsiddique9709]

You are a good teacher

[@DanielTM_JB]

Omg thx so so SO much. now i won't fail my test

[@loisakande3421]

👍👍, nice!!! makes me love maths, good work.

[@TheBruvioli]

Thanks

[@franchesca6430]

Thank you for making a video about this :D

[@oahugt9292]

amazing video

[@mayaavabennett3090]

that intro is great

[@tWiGgAyyy]

Can someone please explain the comprehension problem?

[@durgarameshan8535]

This is really helpfull to me when I am in online class

[@samarabhikha1010]

my math exam is today on algebra angles and geometry and construction and loci please wish me luck!

[@beyblades8494]

my teacher does not teach nothing they need more teachers like him in life

[@avocadoo-1978]

I still don’t get it why x= 50

[@dg_1183]

(3x+10)+(x-30) and since it's supplementary it's 180 degrees; combine like terms 4x-20=180 then add +20 to twenty and 180, and that will equal to 4x=200 and divide them by 4, it will equal to x=50 Sorry if I was late

[@Detective_depther]

@@dg_1183 I don't understand wha?

[@CohenBowers]

Thank you so much, you helped me not fail math class

[@aderze2825]

6:25 I’m still confused on how he solved it

[@maxwellmeows]

You saved my life! 😭💕

[@kyryns2559]

i like the intro lol

[@hrimis3873]

Hello

[@jackofspades7852]

Thanks this was really helpful

[@skyonqt]

THANK YOU SO MUCH!! THIS WAS SO HELPFUL.

[@RadoHudran]

What's the building at 0:55? Looks awesome

[@weishao5105]

Great videos!

[@joshuaquarrie5510]

thank you

[@theampworldpiperssquad..am4557]

Very good

[@ajbeew2257]

Thank youu so so so much!!

[@momocoww]

tyy sm for this vid helped a lot

[@pikleman5880]

You know this video is good because my math teacher used it to explain angles.

[@jazlynrodriguez5696]

5:18 explaining algebraic stuff for angles

[@Fathiyaabdi800]

I love it 😻 soso much 🥰🥰

[@nandalalpdjaiswal7148]

Whats is e and b

[@nikkagata8036]

Sorry dave but....did I get you wrong? The last pproblem, I get 40 but it's show 50 so I'm very confuse... =4x + 10-30 ( =20 ) = 180 =4x + 20= 180 = 4x + 160 (60÷4)= 180 ( 60÷4=40) x=40 I GET THE ANSWER OF 40 BUT IT'S SHOW ON THE VIDEO THAT THE ANSWER IS 50...I DON'T KNOW WHY...

[@ProfessorDaveExplains]

10 - 30 = -20, watch your subtraction! so 4x = 200, x = 50.

[@brokenfrog8462]

I totally missed the part where you add 20 to 180, why does my brain make these errors lol

[@Grabiffy]

I dont understand the checking comprehention part can somone explain.

[@ivorscott]

There's two angles with algebraic definitions. You ask yourself what's the relationship between them? Are they? Vertical angles (nope) Adjacent angles (nope) Alternate interior angles (nope) Alternate exterior angles (nope) Same side interior angles (nope) Corresponding angles (nope) Complementary angles (nope) Unfortunately, they don't apply to any of these. However, both are vertical angles to other angles. When we look into that approach we see the corresponding vertical angles (opposite angles of each) qualify as "Same side interior angles". Since vertical angles are equal to each other we can use the same expressions for our equation. Same side interior angles add up to 180 degrees. Therefore we simplify the following expression for the answer: 3x + 10 + x - 30 = 180

[@miyanosleftfeet5533]

@@ivorscott I am very late, but may I know how he got 50 as the final answer?

[@hezekiahstallings3306]

I like ya cut g

[@Unkown242]

I am preparing for SAT at home. Lmao! Best decision ever!

[@JetPlayzRB]

5:34 how do u solve that

[@levishair5223]

Since the angle relationship in the diagram is complementary we know that both those angles added up will equal to 90. Write the equation then solve for x, ones you’ve solved for x substitute

[@stormclanofficial8377]

You are godly こんにちは

[@juharajemal8966]

Thank you thoe

[@jeanieloque3865]

i get it but when the arrow goes down the number goes up!!!!!!

[@kordru]

which axis, X or Y?

[@achuff123]

Hey you😊

[@Marco_Carbajal]

what is it the relation ship calle between angles a and c at 5:00

[@carultch]

Angles a and c are supplementary angles.

[@Marco_Carbajal]

@@carultch i forgot I commented this and I know now but thanks

[@erikgruber9736]

0:53 Valencia!

[@Jedioriginal]

i have a math test in 2 days and it covers 4 topics and i dont know 2 of them so im watching this to learn one of them which are angle relationships also the test is 4 grades so wish me luck

[@raghad2265]

YOU SAVED MY LIFE THAN YOU!!!!

[@Mikasaakaman-px2tx]

deym another terms that needs to be memorizee

[@quanxist]

anyone care to explain how he solved 5:20 ?? i don't really understand it no matter how many times i replay the video and i'm not an english speaker so i don't quite understand what he's saying. please please help 😭😭😭

[@carultch]

At 5:20, we are given two expressions, for two angles that combine to form a right angle, that is a 90 degree angle. Thus we simply add the two angles, and add them up to 90 degrees. 3*x + x + 10 = 90 Gather like terms: 4*x + 10 = 90 Rearrange to make x the subject: x = 80/4 Solution: x = 20

[@gabrielagomez4939]

You look so funny in the beaging😁

[@sdhaunter9137]

be careful what you say on youtube, it could easily get on onto r/youngpeopleyoutube

[@jarif8471]

The intro was so funny

[@haileymunguia6769]

Good guy

[@sushmamagar7798]

i like it

[@alka_3.4]

and I solved that all by myself?! Yay!

[@lemenadv2519]

Nice

[@SRTGeoo]

imagine liking your own comment

[@GladionD.Pierce]

where are reflex angles

[@poguecriplife4376]

Whats the relationship between angles d and g tho??

[@carultch]

I'd recommend you post timestamps, when asking questions specific to a part of the video, since letters can mean all sorts of different things depending on the context. I assume you are talking about the diagram at 4:17. In this diagram, angles d and h are corresponding angles that are therefore congruent. Then angles g and h are supplementary angles, telling us that they add up to 180 degrees. There is no direct relationship that we've named between angles d and g, so we have to go through a couple of steps to conclude that d and g are angles that add up to 180 degrees.

[@rodger3352]

@@carultch Could u please tell me what are those couple of steps to conclude that result ? Im trying to figure it out but I cant find any help

[@carultch]

@@rodger3352 The OP asked how angles d and g are related in the picture at 4:17. There is no specific name for that pair of angles. Step 1: we relate angle d to an angle in the same group as angle g. Angle d and angle h are called corresponding angles. All you need to do is translate angle d along the diagonal line, and you see it lines up perfectly with angle h. Step 2: notice that angles g and h are arranged such that they add up to a straight angle. This means they are supplementary angles, which implies they add up to 180 degrees. So if we know angle h, then we also know angle g, because g = 180 deg - h. Putting together steps 1 and 2, we see that these steps together imply that g = 180 deg - d.

[@rodger3352]

@@carultch Thank you soooo much for replying ! That was a huge help for me :)) Hope u have a good life !!!

[@milayemilaye]

fankew indeed for the information

[@abhiveersingh1358]

This explanantion better than a school

[@jerssoncruz1626]

Make it shortr time

[@excelokorie1274]

I don't understand the comprehension, please can someone explain it to me

[@carultch]

Relate the comprehension figure at 6:30 to the figure at 4:17, that names all the angles generated by the transversal through the parallel lines. Observe that we are given expressions for angle a, and angle g. Now simply navigate through the transversal angles to form a relationship between angle a and angle g. Angles a and e are corresponding angles, which are therefore equal. Angles e and g add up to a straight angle, which means they are supplementary and add up to 180 degrees. This means that angles a and g add up to 180 degrees, such that the two given expressions must add up to 180 deg. Thus: (x - 30) + (3*x + 10) = 180 Gather like terms: 4*x - 20 = 180 Rearrange to make x the subject: x = 200/4 x = 50

[@luisfeguzman1139]

Thanks, man

[@allessandraphillipspatters9703]

2:30

[@alansalazar6466]

I almost gave up on life half way through the video but BOOM

[@auvare5638]

Took me an hour to watch this cause mom wanted me to do extra credit instead of my actual work

[@Ir1sa]

Hewo :3

[@ronex7401]

ola amigos

[@kaemori6975]

im doing a test rn 😀😖

[@RUSTYEXHAUSTEPIPE]

Pov you forgot something for the staar test

[@janaelmendoza4486]

at 37sec in the video mouth "wide open" 😂

[@madmitch3594]

Funny 12:23

[@v3nnyvill340]

Ty alot yo✌

[@stormii6582]

just got my new module and absolutely dont understand this freaking math subject

[@sehrishumair5805]

🎉