Maths-

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Easy

Question

# A cone has a circular base of radius 6m and volume 84π m³. The height of cone is

- 7m
- 6m
- 8m
- 8m

Hint:

### Volume of a cone = ()πr2h

## The correct answer is: 7m

### We have given the dimensions of a cone

Radius , r = 6 m

Volume of cone = 84π m³

We have to find the height of the given cone

Let height of the cone be h

We know that

Volume of a cone = ()πr^{2}h

84π = () π (6 x 6) (h)

Divide both sides of equation by π

84 = (2 x 6) (h)

84 = 12h)

h =

h = 7 m

Therefore correct option is a) 7m

Therefore correct option is a) 7m

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