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A sheet of tin 44 cm long and 20 cm wide is bent so that the 44 cm edge goes once round the base, forming a cylinder 20 cm tall. What is the radius of this cylinder? (Take π = )

Class 8Surface Area of a CylinderMensuration
  • A14 cm
  • B22 cm
  • C3.5 cm
  • D7 cm

Step-by-Step Solution

The 44 cm edge becomes the circumference: , so cm. 14 cm would be the diameter.
Answer: D) 7 cm

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