Mathematics

In the diagram above ∠OPQ is

In the diagram above ∠OPQ is
  • A.
    90o
  • B.
    53o
  • C.
    36o
  • D.
    26o
Correct Answer: Option 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