Question

what is the value of m?

Explanation:

Step1: Assume the right - angle

Assume the whole angle is a right - angle, which is 90°.

Step2: Calculate the value of m

Subtract the given angle from 90°. So, $m = 90^{\circ}-60.2^{\circ}$.
$m = 29.8^{\circ}$

Answer:

$29.8$