Find the area of the sector of a circle with ra... - JAMB Mathematics 1993 Question
Find the area of the sector of a circle with radius 3m, if the angle of the sector is 60o
A
4.0m2
B
1m2
C
4.7m2
D
5.0m2
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Correct Option: C
Area of sector
(\frac{\theta}{360}) x (\pi)r2, (\theta) = 60o, r = 3m
= (\frac{60}{360}) x (\frac{12}{7}) x 3 x 3
(\frac{1}{6}) x (\frac{22}{7}) x 9
= (\frac{33}{7})
= 4.7m2
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