Review of triangle properties | Special properties and parts of triangles | Geometry | Khan Academy

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Comparing perpendicular bisectors to angle bisectors to medians to altitudes
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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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[@alexandrasabzparvar1474]

These vids are my life savers

[@noelramos4558]

I never knew triangles can be so hard

[@rossdallison2216]

How are you after 6 years

[@dumbwithmilan]

facts

[@mathsioqm]

@@rossdallison2216 YOU AFTER 2 YEARS HUH?

[@rossdallison2216]

@@mathsioqm 😭😭😭

[@TimurAtes-mx9vm]

@skewedbanda😡😡😡😡😡😡😡😡😡

[@keenai5652]

better than my math geometry teacher!! thank you!!

[@varshithasweety415]

best than our maths lectr

[@evagutierrez2019]

this was so helpful!! thank you!

[@Dremple]

This man is a Brilliant teacher. I so appreciate all the postings, catching me up on my College Algebra.

[@stormcroc1384]

hi hows life now after 9 years
imagine if u reply

[@govenormayor87]

I’ve always been intrigued by old, abandoned accounts. 11 years is a long time, who knows how his life has changed

[@The-bald-guy..]

@@stormcroc1384how is it after 3 yrs

[@planes1mple296]

I can't thank you enough, Sal!!! :) Greetings from India.

[@aadithewarrior2657]

saying that you are indian makes me left out

[@cashcartibtch9238]

Still there?

[@edwinrajoo6874]

will the centroid of the medial triangle coincide with the centroid of the original triangle?

[@Nmi4183]

4:06 - not "inradius", but "incenter" ;)

[@studyisfun4379]

Nataly K
Yeah I also do think so

[@43Cubes]

working timestamp 4:06

[@sandhanitizer3126]

Hope u good after 11 years..!!

[@FliickedByVa1k_MM2]

@@sandhanitizer3126 IKR

[@shikharsharma7366]

And what does the orthocenter do?

[@dako2117]

Got a Regents exam today, all I forgot really was goddamn triangles. Going to go do some proofs before I have to leave in 10 mins

[@Leogarzario]

Dakoteus did you pass?

[@dako2117]

Yes, now its your turn

[@aadithewarrior2657]

that reply was just creepy

[@dako2117]

what?

[@OupaviSealight]

I didn't find it creepy, just encouraging? Perhaps I am just too awkward tho...

[@GamersMaim]

7:58 TRIFORCE XD

[@AwesomeDooshi]

Thank u for the video
🙏

[@Halestom_angel]

My favourite movie

[@wafimarzouqmohammad8054]

Do these properties apply to any other polygons?

[@phx0339]

Thanxs

[@TheTakealeap]

I actually have fun watching these videos !! XD

[@stormcroc1384]

hi hows life now after 9 years
imagine if u reply

[@moozer128]

@@stormcroc1384 hi how is your life after 3 years

[@jesserramsessoller990]

This is so good

[@toplobster1040]

Thanks

[@saminm1]

i love you Sal
keep going

[@stormcroc1384]

hi hows life now after 9 years
imagine if u reply

[@saminm1]

@@stormcroc1384 Why would I not? lol Also, so much has changed in my life since back then, I used to be a highschool student, now I'm a PhD student :D

[@eee-th8yk]

@@saminm1 :)

[@dannyb.h.932]

@@saminm1 good job!

[@saminm1]

@@dannyb.h.932 Haha thanks. Halfway through, I think I'm going to stop academia after PhD though

[@ericanimefan]

great video like always XD

[@stormcroc1384]

hi erick
hows life after 9 years?
imagine if u reply omfg itll be cool

[@sandhanitizer3126]

@@stormcroc1384 i hope u reply

[@aadithewarrior2657]

if u were meusuring the first triangle's angle- it would have been 75 degrees

[@aayanscreativelab1786]

Hello Khan academy

[@ericaparkk]

hardest unit in geometry for me -_-

[@eee-th8yk]

and there is sin cosine tangent functions and 3d geometry

[@geethanjalibalaji5232]

sir this is good but very shabby . .

[@MikeDunn]

Shabby? Where's your video on the subject?

[@alpakapucuf3394]

9 years ago. nearly ten

[@thrishachlairealexisadolfo861]

a what a circum-? circum what?

[@carterbrown799]

W vid

[@history797]

woooooooooooooooooooow that rules from history797

[@stormcroc1384]

hi hows life now after 9 years
imagine if u reply

[@mostafakhaled7336]

Please put arabic language in the caption list

[@ritaro2692]

Who is watching this video in 2020

[@amrmukhtar8951]

😅✋

[@christiethecrab]

im watching this in 2021-

[@amrmukhtar8951]

@@christiethecrab
👏

[@43Cubes]

@@amrmukhtar8951 2022

[@amrmukhtar8951]

@@43Cubes 10 years👏

[@teja7986]

Nuke 'em