Question

The two figures are congruent. Find the measure of the requested side or angle. The length of AB

Answer 1

The first thing you have to ask yourself is "what does congruent mean?"

Answer 2

i think the differences between

Answer 3

Triangles are congruent when all corresponding sides and interior angles are congruent. The triangles will have the same shape and size, but one may be a mirror image of the other.

Answer 4

one of the triangles is smaller on the sides

Answer 5

So congruent triangles have the same angles and the same side lengths.
There can only be one obtuse angle in a triangle. the side length they want is the side opposite of the obtuse angle....

Answer 6

the triangles can be mirrored, which is what happened here.

Answer 7

i see. the problem i have is setting up the equation

Answer 8

There is no equation. The first triangle gives you 1/3 sides. The second triangle gives you 2/3 sides, and different sides than given in the first triangle. there is no equation, it is a matter of recognizing which side does AB correspond to on the prime triangle

Answer 9

ummm

Answer 10

If "congruent" means the same lengths, the same angles, does that mean that AB has to have an answer on the A'B'C' triangle?

Answer 11

AB = 21

Answer 12

why?