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Diameter = 2r = 14 r = 14/2 = 7cm Curved surface area = 2πrh = 2 x 22/7 x 7 x 2 = 88 cm2 Curved surface area = 2πr(h + r) = 2 x 22/7 x 7x (2 + 7) = 396 cm2 Required answer = 88 + 396 = 484 cm2
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The total age of A, B and C four years hence will be 88 years. Find the age of C five years hence, if the present age of A and B is 35 years and 25 year...
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