Question

If the volume of a cylinder is 900 cm squared with a height of 20 cm, what

is the diameter of the cylinder? Round to the hundredths.

Answer 1

The diameter is 7.6 cm

Explanation:

Mathematically, the volume of a cylinder can be calculated using the formula;

V = pi * r^2 * h

From the question;

V = 900

r = ?

h = 20

Substituting these values

900 = 3.142 * r^2 * 20

r^2 = (900)/(3.142 * 20)

r^2 = 14.32

r = √14.32

r = 3.78 cm

Mathematically, the diameter is 2 times the radius

We have this as;

2 * 3.78 = 7.6 cm