A rectangular piece of length 12 cm and breadth 4 cm is folded to for

1.	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 cm2C) 48 cm2D) 576 cm2
Answer» Correct option is (C) 48 cm² \(\therefore\) Curved surface area of formed cylinder = Area of rectangular sheet = 12 \(\times\) 4 \(=48\,cm^2\) Correct option is C) 48 cm²

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 cm2C) 48 cm2D) 576 cm2

Answer»

Correct option is (C) 48 cm²

\(\therefore\) Curved surface area of formed cylinder = Area of rectangular sheet

= 12 \(\times\) 4 \(=48\,cm^2\)

Correct option is C) 48 cm²