In the diagram above ∠OPQ is?
- 90o
-
53o
- 36o
- 26o
The correct answer is: B
Explanation
a = a(base ∠s of Iss Δ)
∴ a+a+74 = 180
2a + 74 = 180
2a = 180-74
2a = 106
a = 53
∴∠OPQ = 53o
There is an explanation video available .