Question

The cylinder shown here has a height of 7 centimeters and a radius of 4 centimeters.

1. What is the area of the base of the cylinder? Express your answer in terms of .
2. How many cubic centimeters of fluid can fill this cylinder? Express your answer in terms of .
3. Give a decimal approximation of your answer to the second question using 3.14 to approximate n.

Answer 1

1) 16pi square cm

2) 112pi cubed cm

3) 351.68 cubed cm

Explanation:

Question 1: The base of a cylinder is a circle. To find the area of a circle, we can use the formula A = pi(r^2). the radius is 4 centimeters. 4^2 = 16.

The answer to the question is 16pi square cm

Question 2: This question is asking for the volume of the cylinder. To find the volume of the cylinder, we must multiply the area of the base by its height. we know the area of the base is 16pi. 16pi x 7(the height) = 112 pi.

The answer to the question is 112 pi cubed cm

Question 3: If pi were to be 3.14, we just need to substitute pi in the equation for question two with 3.14:

16(3.14) x 7 = 351.68

The answer is 351.68 cubed cm