Types of Angles and Angle Relationships

[@scottmccollough262]

Thanks!

[@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

[@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

[@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

[@jackyliang4939]

This is better than a 2 hour lecture

[@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

[@Randomdudes_w3]

True

[@Itzmanha-y3y]

@@abdullahsoomro3443 u sure?

[@ceegae1670]

​@@abdullahsoomro3443 Nope alot of them learn well but is bad at explaining and teaching. Even worse when they have a huge ego 😭. If they did their job perfectly no one would be hating school

[@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 :)

[@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

[@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!

[@Thaji_]

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

[@Majorjalal]

Solution to the question: (3x+10) + (x-30) = 180 Open the brackets 3x+10+x-30 = 180 Like terms 3x+x+10-30 = 180 Simplify 4x-20 = 180 Exchange terms 180+20= 4x Simplify 200=4x Divide x=50 Hope this helps!

[@Sparkelxsparks]

thank you! 🙏

[@Majorjalal]

@@Sparkelxsparks You're welcome

[@Ari_the_hopeless]

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

[@Euphoria-c7w]

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

[@amarareddyjadda3106]

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

[@tanhamasud8340]

Doing gods work out here my teacher sucks so needed this

[@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

[@marianacosta7178]

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

[@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

[@visualquantum5279]

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

[@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"

[@AslamKhan-tv2ct]

Excellent way of explaination professor

[@kyleandrei3444]

This really Helped me With my module

[@omarisaintjuste1665]

Thank you this video was very helpful

[@joud3267]

He is amazing saved me at the last minutes

[@Moaaz-j2v]

Thanks for helping! Have a great day :)

[@florxz260]

Thank you so much professor this video was super helpful!

[@muhammadzayaanyasir6104]

why are you gae?

[@maxwellmeows]

You saved my life! 😭💕

[@franchesca6430]

Thank you for making a video about this :D

[@ajbeew2257]

Thank youu so so so much!!

[@pizakittys]

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

[@mayaavabennett3090]

that intro is great

[@maryamsiddique9709]

You are a good teacher

[@weishao5105]

Great videos!

[@Penda-eo3te]

Thank you❤❤

[@TheBruvioli]

Thanks

[@ArshmaanHaroon-n2c]

I love ur videos so much u help me a lot thank u so much😊❤

[@punyanuchjarugosol7307]

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

[@loisakande3421]

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

[@beyblades8494]

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

[@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

[@skyonqt]

THANK YOU SO MUCH!! THIS WAS SO HELPFUL.

[@RadoHudran]

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

[@CohenBowers]

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

[@oahugt9292]

amazing video

[@DanielTM_JB]

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

[@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.

[@durgarameshan8535]

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

[@jackofspades7852]

Thanks this was really helpful

[@theampworldpiperssquad..am4557]

Very good

[@momocoww]

tyy sm for this vid helped a lot

[@kyryns2559]

i like the intro lol

[@hrimis3873]

Hello

[@Fathiyaabdi800]

I love it 😻 soso much 🥰🥰

[@aderze2825]

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

[@BrianCho-l7f]

The angle with the degree (3x+10) is supplementary to (x-30) because vertical angles are the same. Then you add it up and separate the variables and numbers. You'll get 4x = 200. Divide that by 4 and you get x = 50. :D

[@joshuaquarrie5510]

thank you

[@SRTGeoo]

imagine liking your own comment

[@jazlynrodriguez5696]

5:18 explaining algebraic stuff for angles

[@samarabhikha1010]

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

[@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

[@tWiGgAyyy]

Can someone please explain the comprehension problem?

[@BrianCho-l7f]

The angle with the degree (3x+10) is supplementary to (x-30) because vertical angles are the same. Then you add it up and separate the variables and numbers. You'll get 4x = 200. Divide that by 4 and you get x = 50. :D

[@pikleman5880]

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

[@raghad2265]

YOU SAVED MY LIFE THAN YOU!!!!

[@m4rl7nn]

Hi 😮

[@m4rl7nn]

Heyyyg ❤❤❤❤

[@Unkown242]

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

[@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?

[@BrianCho-l7f]

@@Detective_depther Seems I'm a little late... the angle with the degree (3x+10) is supplementary to (x-30) because if two straight lines intersect, it causes the angles that are in front of each other to be the same. :)

[@Aidenisiah0]

I wanna thank you because my teacher is not good at teaching

[@Miles-Morales-q3w]

Here before a test my even geometry teacher assigned

[@juharajemal8966]

Thank you thoe

[@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

[@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

[@erikgruber9736]

0:53 Valencia!

[@jarif8471]

The intro was so funny

[@achuff123]

Hey you😊

[@JediWRLD]

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

[@gabrielagomez4939]

You look so funny in the beaging😁

[@sdhaunter9137]

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

[@auvare5638]

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

[@Ht4Mc]

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?

[@fnsilly8983]

Yea i was completely right when we started doing algebra

[@janaelmendoza4486]

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

[@nandalalpdjaiswal7148]

Whats is e and b

[@alka_3.4]

and I solved that all by myself?! Yay!

[@hezekiahstallings3306]

I like ya cut g

[@lemenadv2519]

Nice

[@abhiveersingh1358]

This explanantion better than a school

[@mind-h4i]

Is there anyone here that is just learning for fun?

[@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

[@hailstheyoutube87]

Good guy

[@luisfeguzman1139]

Thanks, man

[@Freefire-k2k3c]

Alternative angles

[@jeanieloque3865]

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

[@kordru]

which axis, X or Y?

[@alansalazar6466]

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

[@MttGaming904]

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 !!!

[@sushmamagar7798]

i like it

[@milayemilaye]

fankew indeed for the information

[@allessandraphillipspatters9703]

2:30

[@vhernizedeasis9677]

I'm grade 6 and this is our lesson 😢😭😭😭😭

[@doorknob868]

Try grade 10😭

[@kaemori6975]

im doing a test rn 😀😖

[@stormii6582]

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