WAEC - Mathematics (1990 - No. 24)
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]
6o
26o
52o
103o
206o
Explicació
πr2 = 360o
44cm2 = θ; ∴ θ =
44πr2
x 360o = 102.9o = 103o