2 years ago

Can somebody please help with this?

Mathematics

1 answer:

Kay [80]2 years ago

7 0

Answer:

A. 2.9π(9²)

Step-by-step explanation:

You are expected to know that the area of a circle is given by the formula ...

A = πr²

and that r in the formula represents the radius of the circle, half the diameter.

The area of the circular base of the cylinder is the area of a circle with a radius of 9 feet. It will be ...

A = π(9²)

When that is multiplied by the height of the cylinder to find its volume, you have ...

V = Bh

V = (π(9²))(2.9)

This can be rearranged to match the form in answer choice A:

2.9π(9)²

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