Question

a rectangular piece of paper 22cm by 6cm is folded without overlapping to make a cylinder of height 6 cm. Find the volume of the cylinder.

Answer 1

In this question , Height of the cylinder = 6 cm.
And , Circumference of the base = 22 cm
So, 2*22/7*r = 22.
i.e. r = 7/2 cm.
Apply the formula of volume of cylinder = 22/7*r^2*h
i.e. 22/7 * 7/2 * 7/2* 6 cubic cm = 231 cubic cm.

Answer 2

Answer:

In this question , Height of the cylinder = 6 cm.

And , Circumference of the base = 22 cm

So, 2*22/7*r = 22.

i.e. r = 7/2 cm.

Apply the formula of volume of cylinder = 22/7*r^2*h

i.e. 22/7 * 7/2 * 7/2* 6 cubic cm = 231 cubic cm

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