Question

A cylinder has a volume of 315 pi cubic meters and a height of 21 meters. What is the area of the base? 15 pi square meters 18 pi square meters 294 pi square meters 6,615 pi square meters

Answer 1

A. 15 pi square meters

Explanation:

Formula for cylinder volume:

• V = bh

What we know:

1. V = 315 pi m³

2. h = 21 m

3. b = ?

b = V/h

So, 315 pi m³ ÷ 21 m = 15 pi m²

Our answer is 15 pi square meters (15 pi m²)

Answer 2

• A. 15 pi square meters

Explanation:

Volume of the cylinder:

• V = bh

Given

• V = 315 pi m³
• h = 21 m
• b = ?

From the volume formula we get:

• b = V/h
• b = 315 pi m³ / 21 m = 15 pi m²

Correct option is A