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Aptitude | Mensuration 3D | Question 2

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If Jimmy rolls a sheet of paper initially square-shaped along its length to make it a cylinder. Find what will be the ratio of the base radius of the cylinder to the side of the square?

(A)

1/2π

(B)

7/2π

(C)

9/π

(D)

11/2π


Answer: (A)

Explanation:

Perimeter of base circle = side of square 

2πr = a

r/a = 1 : 2π


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Last Updated : 28 Jun, 2021
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