Question

find the measure of ∠rsi and choose the appropriate result.

Explanation:

Step1: Recall linear - angle property

A straight - line forms an angle of 180°. So, \(\angle RST = 180^{\circ}\).

Step2: Use angle - addition formula

We know that \(\angle RST=\angle RSV+\angle VST\). Given \(\angle VST = 62^{\circ}\), and we want to find \(\angle RSV\). Then \(\angle RSV=\angle RST-\angle VST\).

Step3: Calculate the angle

Substitute the values: \(\angle RSV = 180^{\circ}-62^{\circ}=118^{\circ}\).

Answer:

B. 118°