Question

question 3 of 10 what is the measure of ∠rst? 131° 43° a. 93° b. 87° c. 131° d. 90°

Explanation:

Step1: Recall circle - angle property

The angle formed by two perpendicular chords in a circle is 90°.

Step2: Identify the chords

Chords $PQ$ and $RT$ are perpendicular at point $S$. So, $\angle RST = 90^{\circ}$.

Answer:

D. 90°