If given an isosceles trapezoid describe how you would prove that the base angles are congruent.

Question

mynameisnemo · Answer

@Ghostedly

mynameisnemo · Answer

I'll just do 1 at a time so if you do know them I can give you a medal for each

ghostedly · Answer

Well, I don't know... But I think I know someone who does.

ghostedly · Answer

@welshfella

mynameisnemo · Answer

okay! That helps a lot too

welshfella · Answer

|dw:1457357338745:dw|

mynameisnemo · Answer

yes, that is an isosceles trapezoid, now wouldn't I create two altitudes forming two right triangles?

mynameisnemo · Answer

If so, I don't know where to go from there; if not I'm completely stuck

welshfella · Answer

I can give you  an explanation on how to do it but I'm from  the UK and  I'm not familiar with all the names they give the reasons in the US.

mynameisnemo · Answer

That's fine :)

mynameisnemo · Answer

I'm also doing history atm so if I don't reply right away that's why

welshfella · Answer

Yes I think thats one way to do it.
If you can prove theses triangles are congruent  then it follows that the base angles are equal. 
Let me see

mynameisnemo · Answer

What do you want to see? There is no image. it was a written question.

welshfella · Answer

lol!  - I just meant i'm thinking!

mynameisnemo · Answer

|dw:1457357890554:dw|

mynameisnemo · Answer

oh XD

mynameisnemo · Answer

ok so I found this in my notes:|dw:1457358265604:dw|

mynameisnemo · Answer

It's basically a whole proof but it's how to get <ABC = <DCB |dw:1457358437159:dw|