Question

If a rectangular sheet is folded along its length to cover the curved surface of the cylinder with radius R and height H, then find the length and breadth of the rectangular sheet.

• A. Length of the rectangular sheet = $\pi R$
• B. Breadth of the rectangular sheet = $H$
• C. Length of the rectangular sheet = $2\pi R$
  
• D. Breadth of the rectangular sheet = $2H$

Answer 1

Answer: (B), (C)

The correct options are
B Breadth of the rectangular sheet = $H$
C Length of the rectangular sheet = $2\pi R$

Length of the rectangular sheet = Circumference of the cross-section of the cylinder
$=2\pi R$

Breadth of the rectangular sheet = Height of the cylinder
$=H$