JAMB - Mathematics (2008 - No. 24)
In the diagram above ∠OPQ is?
90o
53o
36o
26o
解释
a = a(base ∠s of Iss Δ)
∴ a+a+74 = 180
2a + 74 = 180
2a = 180-74
2a = 106
a = 53
∴∠OPQ = 53o
In the diagram above ∠OPQ is?
a = a(base ∠s of Iss Δ)
∴ a+a+74 = 180
2a + 74 = 180
2a = 180-74
2a = 106
a = 53
∴∠OPQ = 53o