Question

Please answer in full sentences , and show your work.

Answer 1

b) ∠4 = m∠U + m∠L

∠4 = 25° + 52°

∠4 = 77°

Explanation:

a) Exterior Angle Theorem. The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles of the triangle.