Question

Find the volume of the right circular cone with radius 6 cm, height 7 cm


`( \pi = (22)/(7) )`
​

Answer 1

Volume = 264 cm³

Explanation:

Formula:

Let b be the base (circle) of the cone

and h be the height of the cone

`\text{volume of the cone} =(1)/(3) * b* h`

……………………………………………

→ b = π × r²

= π × 6²

= (22÷7) × 36

= 113.142857142857 cm²

→ h = 7

`\text{volume of the cone} =(1)/(3) * b* h`

The volume = (1÷3)×(113,142857142857)×(7)

= 264 cm³

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METHOD 2 :

Volume = (1÷3)×(22÷7)×36×7

= (1÷3)×22×36

= 22×12

= 264