Question

find the value of ∠a.

Explanation:

Step1: Identify the right - angle

The given angle is part of a right - angle which is 90 degrees.

Step2: Calculate angle A

We know that one part of the right - angle is 65 degrees. So, $\angle A=90^{\circ}-65^{\circ}=25^{\circ}$.

Answer:

A. 25 degrees