JAMB - Mathematics (1995 - No. 44)

In the diagram, the base diameter is 14cm while the height is 12cm. Calculate the total surface area if the cylinder has both a base and a top.[\(\pi \frac{22}{7}\)]

836cm²

308cm²

528cm²

154cm²

Explanation

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

JAMB - Mathematics (1995 - No. 44)

Explanation

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