A rectangular piece of length 12 cm and breadth 4 cm is folded to form a cylinder. Find its curved surface area.
A rectangular piece of length 12 cm and breadth 4 cm is folded to form a cylinder. Find its curved surface area.
A) 16 cm2
B) 192 cm2
C) 48 cm2
D) 576 cm2
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Correct option is (C) 48 cm2
\(\therefore\) Curved surface area of formed cylinder = Area of rectangular sheet
= 12 \(\times\) 4 \(=48\,cm^2\)
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