Solve for the volume of the cylinder

Question

radius of 3cm
heigth of 9cm
use the 7th grade mathematics Formula sheet

area of one circle base = cm2
Volume of cylinder = cm2

Answer 1

To find the volume of the cylinder, we first need to find the area of one of the circular bases.

The formula to find the area of a circle is A = πr^2, where r is the radius of the circle.

Given that the radius is 3cm, we can plug this into the formula to find the area of one circular base:
A = π(3)^2
A = π(9)
A = 9π cm^2

Now that we have the area of one of the circular bases, we can find the volume of the cylinder using the formula on the 7th grade mathematics formula sheet:

Volume of cylinder = Area of base × height
Volume of cylinder = 9π cm^2 × 9 cm
Volume of cylinder = 81π cm^3

Therefore, the volume of the cylinder is 81π cubic centimeters. You can leave your answer in terms of π or approximate it using 3.14 or the value given in the question.