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Degger [83]
3 years ago
10

I need help on this question

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
8 0

Your answer is the last option, 615.44 ft³.

We know this as the formula for the volume of a cone is [(π × r²) × ]/3, and substituting in our numbers, with 3.14 being π, we get:

[(3.14 × 7²) × 12]/3 = (153.86 × 12)/3 = 1846.32/3 = 615.44

I hope this helps!

yarga [219]3 years ago
8 0

Hey!

The formula for finding volume of a cone is: (π · r² · h) ÷ 3

\pi = 3.14

r = 7 \\ r^{2} = 7 \times 7 = 49

h = 12

First multiply

3.14 \times 49 \times 12 = 1846.32

Divide by 3

1846.32 \div 3 = 615.44\ ft^{3}

Your answer is the last choice

Good luck and hope this helps! :)

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