Question

If triangleABC =~ triangleDEC, what is maD?

Answer 1

Triangles ABC and DEC are similar.
That means the corresponding angles are equal.
The first letter A of the first triangle corresponds to the first letter D of the second triangle. Therefore angle A = angle D; angle B = angle E; angle C = angle C.

Answer 2

May you show me how to figure this out? And help me with a few more? Please and thank you!

Answer 3

angle A = angle D.
They have given you angle A.
So angle D has the same value.

Answer 4

m<A = m<D
m<A = 40 degrees
Therefore, m<D = 40 degrees.

Answer 5

Sorry @aum my computer internet failed from the weather. I'm so sorry!

Answer 6

np.