Two column proof showing segments are perpendicular | Congruence | Geometry | Khan Academy

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Using triangle congruency postulates to show that two intersecting segments are perpendicular

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[Mayhem]

anybody else here to try to learn this before a test but still doesn't get it... because that's why I'm here 😭

[Will-eguu]

I can’t wait to prove why a triangle is congruent in 10 years! Thanks public school geometry😊

[nyx]

The reason of CE = CE can be "reflexive property"

[abbybennett]

You can't just say "obvious" you have to use theorems and such for your reasons. Such as reflexive, CPCTC can be used a lot in the problem but is not. Could have saved a heck of a lot of steps by using CPCTC.

[chrissybuddy]

03:02 - the property is also called Reflexive ( a quantity is Congruent or equal to itself)

[kaaynn-rn]

I’m strong in algebra but a dying child in geometry. Thank you so much, I feel so behind in geo class and the one struggling the most.

[hannam]

I hate geometry. I hate proofs. That's straight up...but this has helped so munc

[hannam]

Instead of obvious it should've been reflexive property of equality

[morganfranks]

Remember guys, there's no ASS in math.

[josephan]

You can't say obvious when you are giving a reason....

[bofaasa]

thanks for helping prove a line is going through a triangle!

[rhoadess]

I can do this geometry well, and it's fun to me. If only I could apply such reasoning when I do other real life things, from fixing the lawn mower, to making toast, down to thinking about my own thinking. I think i'll start trying to do that.

[Systolic_Gaming]

8:27 supplementary thank you very much

[klimis]

The most confusing part of math. Me: gets perfect score in my math solutions. Also me: gets zero in two collumn proof. Like seriously this part of math is just confusing and killing my brain cells

[maddie_ha]

Well, on the tests the shapes are not that simple

[huntergreer]

Thanks for doing what my teacher couldn’t actually teaching me proofs

[trevohngreen]

Dude I have been stuggling with this for the longest thank you MUCH 🙏🏾🙏🏾🙏🏾🙏🏾

[immajorlygaygayiam]

Isnt helpful beause in my Geometry class Two Column Proofs are way differnt on the "Reasons" side. All these postulates are things i've never heard of.

[Richard-yxi]

Proofs is something I really had trouble in, this video helped a lot. Thanks Sal :-)

[crzyderpkity]

I'm just trying to learn how to do my homeschool geometry ;-;