Question

Please help with this question

Answer 1

384π cm³

Explanation:

Formula for the volume of a cone is
`\displaystyle \large{(1)/(3)\pi r^2 h}` where:—

• r is radius
• h is height

Our radius is given in an attachment which is 12 cm and height is 8 cm. Substitute these values in the formula:—

`\displaystyle \large{V = (1)/(3)\pi (12)^2 \cdot 8}\\\displaystyle \large{V = (1)/(3)\pi \cdot 144 \cdot 8}\\\displaystyle \large{V = 48 \pi \cdot 8}\\\displaystyle \large{V = 384 \pi}`

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Summary

Volume (Cone)

`\displaystyle \large{V = (1)/(3)\pi r^2 h}` where:—

h is height or perpendicular.

r is radius.

Value of Pi (Commonly Used)

`\displaystyle \large{\pi \approx 3.14}`

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