Question

The shape is a rectangle, will you please help me find the angle measures of 1,2 and 3?

Answer 1

∠1 = ∠3 = 54°; ∠2 = 36°

Explanation:

Each of the triangles is isosceles. Triangles opposite each other are congruent, so ∠2 is congruent to 36°.

∠2 and ∠3 are complementary, so ∠3 is 54°. Since ∠3 is congruent to ∠1, it, too, is 54°.