In the triangle below, what is the measure of angle R?

Answer:
Option C is correct.
Step-by-step explanation:
Given:
PQ = 8 , QR = 8
m∠P = 30°
To find: m∠R
Since two sides of the triangle are equal.
We have Isosceles triangle.
PQ = QR
⇒ ∠R = ∠P ( angles opposite to equal sides are equal )
So, ∠R = 30°
Therefore, Option C is correct.