Triangle Congruence Theorems Explained: ASA, AAS, HL

Join us as we explore the five triangle congruence theorems (SSS postulate, SAS postulate, ASA postulate, AAS postulate, and HL postulate). By the end of this lesson, you will be able to identify each theorem and understand which scenarios they can be applied in. (hypotenuse leg, angle angle side, angle side angle, side angle side, side side side)

Oh yeah, and you'll learn to avoid the donkey theorem :)

This lesson answers the questions: How do I prove that two triangles are congruent? What are the triangle congruence theorems? What is SSS? What is SAS? What is ASA? What is AAS? What is HL? How do I prove triangles using hypotenuse leg?

[luigibenc]

my teacher has been teaching this for over a week now and I have a test tomorrow and so I came here. I didn't know anything before and now understand everything from this one video that my teacher took over 7 days to explain

[theswag]

Anyone here during online school?

Edit: Im still getting comments, our education system amiright?

[cupibori]

SSS 1:42
SAS 2:30
ASA 3:15
AAS 3:58
HL 5:01

[chrissiec]

I like that he puts effort into his videos- from the design to making sure the content keeps the viewer engaged. I'm ridiculously terrible at math and we just learned about triangle proofs in the geometry course I'm taking. This helped clear a lot of stuff up! :D

[laceyevelynn]

Me watching this in class 1 min before my test starts like 👁👄👁

[nono]

Me watching this video a week after my teacher assigned it like 👁 👄 👁

[msstephanie]

THANK YOU! My teacher didn’t explain the difference between AAS and SAS at ALL.

[juaquinpineda]

Math has never been this easier! Make more vids!! Thanksss! I learned A LOT more from a 10 minute video rather than a 3-hour lecture 😂😂

[JahangirAlam-vdhg]

The last example, as to why ASS is not congruent has been excellent.

[brahimtchouk]

Excelent job! The simplest and most crystal clear explanation I've ever come across during my entire life in studying math..I think teachers should learn your method, it will help a lot.Thank you so much.

[blakekeller]

bro who else has a test tomorrow💀
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[navneethnalajala]

This was so hard, being a seventh-grader, but learning it now has been so easy. Thank you so much for the video! Keep it up!

[maryanne]

I am afraid., Because now i understand but on the test day i forget everything and i always get a bad grade in math. I can't do anything i am just bad at math i wish i was smart.

[ymm]

Love that this is visual, which is exactly how I teach. So I'm thinking, "why recreate the wheel?" when you've done this work for me already :). So thank you. I plan to share this with my students.

[MisterGoose]

can we just have all math moved to youtube because guys like these explain it so much better than teachers

[melissam]

this makes no sense how do I tell if a triangle is AAS, SSS, ECT when THEY ARE ALL TRIANGLES AND LOOK THE SAME SSS CAN LOOK LIKE SAS😭😭😭

[mrikmathteacher]

Excellent video man! What's more impressive is the amount of time you guys must be putting into making these videos. Keep up the good work. - Mr Ik Math Teacher

[kevinpizana]

bruh a 7 minute video teached me more than a 2 hour class

[pickledbreadproductions]

Honestly, it's great to watch a video that doesn't drag it out ten times what it needs to be.

[keplerr]

me when i have an assignment due in 30 minutes and im trying to understand this: 👁👄👁