Step 1

The picture below shows the cylinder with the radius 5cm and the height 8cm.

Step 2

To calculate the volume, we can use the formula for the volume of the cylinder. Note that r is the radius and h is the height.

V = πr²h

Step 3

The values for r, h and  π are given. So, we just substitute r with 5, h with 8 and π with 3.14.

V = (3.14)(5)²8
                  = (3.14)(25)(8)        
= 628         

Step 4

Now, the calculated number 628 carries no meaning unless we include the unit for it. Since the radius and height are in cm, the unit for volume will be cm³. Hence:

V = 628cm³

Step 5

Clearly, the answer is D.

Next Question >>

Back to Lesson