Question
A right circular cylinder of height 15cm is covered by a
rectangular tin foil of size 15cm ×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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