Question
A right circular cylinder of height 15cm is covered by a
rectangular tin foil of size 15cm Ă—24cm. the volume of the cylinder is.Solution
if tin foil covered then the curved surface area of cylinder is equal to the area of tin foil. Curved surface area = 15 ×24 H = 15cm Volume = (C.S.A)2 /4 π h = (15×22×15 ×22×7) /4×22×15 = (15×22×7)/4 = 77×15/2 =577.5cm3
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