Four points P, Q, R, and S are located on the circumference of a circle. If ∠RPS = 30° and ∠PQS = 40°, what is the measure of ∠PRS?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 40°.
∠RPS = 30°, ∠PQS = 40°
∠PRS subtends arc PS.
∠PQS also subtends arc PS.
Therefore, ∠PRS = ∠PQS = 40°