A cylinder has a height of 5.3 cm and a diameter of 3.0 cm. What is its volume? (Hint: Volume of a cylinder = r2h)

25.0 cm3

66.2 cm3

149.9 cm3

37.5 cm3

The volume of a cylinder is πr^2h

Diameter is 2 times the radius.

This can be simplified to 3.14 (1.5^2) (5.3)

This is because the radius is 1.5, which is half of 3, the diameter.

Now just solve:

1.5^2 = 2.25

3.14•2.25 = 7.065

7.065•5.3 = 37.4445

This can be rounded to 37.5, which means the answer is 37.5 cm^3.