Question on: JAMB Mathematics - 1995
A
836cm2
B
308cm2
C
528cm2
D
154cm2
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Correct Option: A
Area(S) = 2(\pi r^2 + 2 \pi rh = 2\pi r(h + r))
D = 14cm, 2r = D
r = (\frac{D}{2})
= 7cm
S = 2 x (\frac{22}{7} \times [7 + 12] = 44 \times 19)
= 836cm2
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