- A275 sq cm
- B550 sq cm
- C1100 sq cm
- D94 sq cm
Step-by-Step Solution
The paper itself becomes the curved surface, so CSA = area of the sheet = sq cm. 94 cm is the perimeter of the sheet, not an area.
Answer: B) 550 sq cm
Nisha rolls a rectangular chart paper 25 cm by 22 cm, joining the 22 cm edges without overlap, to make a hollow tube 25 cm tall. What is the curved surface area of the tube?
Class 8Surface Area of a CylinderMensuration
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