Acute right and obtuse angles | Angles and intersecting lines | Geometry | Khan Academy

We briefly discussed the types of angles in the last tutorial but we'll delve a little deeper into acute, obtuse, and right angles here.

Missed the previous lesson?

Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.

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[talex]

Thank you for doing this! So glad Bill Gates helped you start this up. I'm a retired high school math teacher and love that you meet the students where they most likely are, online!!!

[Wucanitbenou.q]

how are you good at drawing! teach me your ways!

[captainobvious]

4:07 "Maybe that's not an appropriate analogy". Lmao I laughed so hard!!

[robloxmaster]

This video taught me how to do my angles better. Cause I'm in 4th grade

[keo]

The way i remember is acute is small so "cute". Obtuse is large, "ob"ese. And right is the other one.

[gulnaseem]

Thank u soo much
Your videos are very helpful
Even better than my sir

[NtHnG_T_Se_hRe]

Thank you! I was struggling at my homework so my brother recommended this and it helped me a bit more! Once again, thank you!

[hannahism]

this was hard to figure out at first but now i get it

[rhea]

"It's all big and open. It won't be able to notice things that are small..." 😂😂

[Desminique]

I like to listen to this math its good for us.

[happythumb.]

I want to appreciate the nicest computer writing on a mouse I have ever seen

[letsgogaming]

Thanks i subscribed 😜👌 by the way you are very helpful thanks

[andrewleung]

i started to sleep at 2:10
but very helpfull

[cupidz.target]

Thank you so much u help nr with my homework

[Fusakin]

Remember an obtuse angle is more than 90 degrees but less than 180 degrees.

[jordanmcmm]

Anyone else do in home work hi Nikita hi Ron yo Shamit

[VeerTrivedi]

I’m doing this for 5th grade that’s the grade ima be in next year

[Nonemixed]

how do you draw on a computer so well?

[therealmccoy]

Hi kids, I want to have that guy's voice when i grow up sounds so SMART!

[ripple]

nice, I got brilliant at angles, thanks