Question

Triangle XYZ with m∠X = 25° , m∠Y = 50° and m∠Z = 105° , is reflected across the x-axis to obtain ∆ABC.

What is the measure, in degrees, of ∠B?

Answer 1

Answer: 50

Explanation:

Since angle B corresponds to angle Y, and the two triangles are congruent (since a reflection is a rigid motion), the measure of angle B = measure of angle Y = 50 degrees.