2 years ago

R = 3.7 m. Calculate the circumference of the circle.

Mathematics

1 answer:

Ksivusya [100]2 years ago

3 0

Answer: 23.25m

Step-by-step explanation:

C=2πr=2·π·3.7≈23.24779m

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Aleksandr [31]

ANSWER

A. 22 in

EXPLANATION

The volume of a cone is calculated using the formula:

$Volume = \frac{1}{3} \times \pi {r}^{2} h$

It was given that: the volume is 2,279.64 in³

The height of the cylinder is also given as: h=18 in.

We substitute, the given values into the formula to get:

$2279.64= \frac{1}{3} \times (3.14) \times {r}^{2} \times 18$

$2279.64= 18.84 {r}^{2}$

${r}^{2} = \frac{2279.64}{18.84}$

${r}^{2} = 121$

We take positive square root to get;

$r = \sqrt{121}$

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Therefore the diameter is 2(11) which is equal to 22 inches.

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