A square sheet of side length 44 cm is rolled along one of its sides to form a cylinder by making opposite edges just to touch each other. What is the volume of the cylinder ? (Take π = 22/7)  

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CDS Elementary Mathematics 16 April 2023 Official Paper
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  1. 6776 cubic cm  
  2. 6248 cubic cm 
  3. 5896 cubic cm 
  4. 5680 cubic cm

Answer (Detailed Solution Below)

Option 1 : 6776 cubic cm  
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Detailed Solution

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Formula used:

Perimeter = Base of cylinder = 2π × radius

Volume of cylinder = π(radius)2 × h

Calculation:

When the square sheet is rolled along one of its sides 

The circumference of the base of the cylinder = Length of the side of the square sheet

Therefore, the circumference of the base of the cylinder = 44 cm

 2πr = 44

 2 × (22/7) × r = 44 

r = 7 cm

The height of the cylinder is equal to the length of the side of the square sheet, which is 44 cm.

Volume = π × radius2 × height

 V = (22/7) × 72 × 44

 V = 22 × 7 × 44

 V = 6776 cm3

Therefore, the volume of the cylinder is 6776 cm3.

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