A sector of a circle of radius 7cm has an area ... - WAEC Mathematics 1990 Question
A sector of a circle of radius 7cm has an area of 44cm2. Calculate the angle of the sector correct to the nearest degree [Take π = 22/7]
A
6o
B
26o
C
52o
D
103o
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Correct Option: D
πr2 = 360o
44cm2 = θ; ∴ θ =
44/πr2 x 360o = 102.9o = 103o
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