Question

Congruence in Overlapping Triangles question... Please help?? (Will award medal and 'fan' to best answer)

Answer 1

@hartnn do you think you know how to do this? :/

Answer 2

3 should be D because they are vertical angles.

What do you think 2 is?

Answer 3

AB = CD?

Answer 4

3 is D because they are vertical angels by def'n. You should look that up.

2 I am thinking A. We already know that AB = CD because of the given statement about congruent triangles. A would give us another angle within the triangles we are trying to prove. Maybe then we'll be able to use SAS, retriceto prove congruency

Answer 5

A S S

Answer 6

Your thoughts ?

Answer 7

I thought there wasn't a Angle-Side-Side postulate?

Answer 8

Or am I wrong?

Answer 9

"We already know that AB = CD because of the given statement about congruent triangles."

Not necessarily true. It's given the AB is parallel to CD, but not that they are congruent to eachother.
It'd be helpful to know that they WERE congruent... that's the only reason why I think it might be it.

Answer 10

No you are correct. I made an incorrect statement

Answer 11

if ABD = CDE then AB=CD, BD=DE, DA=EC

Answer 12

True...

Answer 13

B wont really help, we know D, and C wont help at all. By process of elimination I would choose A

Answer 14

I think that will give us ASA

Answer 15

But I can't think of a logical reason why it /would/ be A...

Answer 16

Oh. wait..

Answer 17

Or SAA because there is vertical angles across E

Answer 18

If AB = CD , a and BD = DB then if we knew angle A was congruent to angle C then we'd have a SSA there too..