Question

what is the measure of angle r?
(there is a triangle rqs with angle at q being 92° and angle at s being 59°. option: 17 degree)

Explanation:

Step1: Recall triangle angle sum

The sum of angles in a triangle is $180^\circ$.

Step2: Sum known angles

Add $\angle Q$ and $\angle S$:
$92^\circ + 59^\circ = 151^\circ$

Step3: Calculate $\angle R$

Subtract sum from $180^\circ$:
$\angle R = 180^\circ - 151^\circ$

Answer:

A. 17 degree