2 years ago

Need Help! :( Will give brainliest! Explain please

Mathematics

1 answer:

Korolek [52]2 years ago

3 0

The first one is 3/4 and the second one is 47square units.

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The volume of a CONE-shaped hole is 75pi ft cubed. If the hole is 9 feet deep, what is the radius of the hole?

Arturiano [62]

Answer:

The radius of hole is 5 feet

Step-by-step explanation:

Depth of conical hole = 9 feet

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Volume of conical hole = $\frac{1}{3} \pi r^2 h$

So, Volume of conical hole = $\frac{1}{3} \pi \times r^2 \times 9$

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So, $\frac{1}{3} \pi \times r^2 \times 9=75 \pi$

$\frac{1}{3} \times r^2 \times 9=75$

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$r=\sqrt{\frac{75 \times 3}{9}}$

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