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Q.

The volume of a cylinder of radius 'r' and height 'h' is _____________

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a

π r hr + h cu.unit

b

2π r2 h cu.unit

c

2π r h cu.unit

d

π r2 h cu.unit

answer is A.

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Detailed Solution

We know that a cylinder resembles a prism (but it is not a prism because it has a curved side face), so we use the same prism volume formula to calculate the volume of a cylinder.

We know how to calculate the area of a prism using the formula

Where V = A h

A = base area, h = height

The volume, V, of a cylinder with radius r and height h is π r2 h cu.unit

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