Unit 8 Review (8th Grade)

Surface Area

100

A sphere has a radius of 3 cm. What is its surface area?

113.04 cm²

200

A cylinder has a radius of 2 m and a height of 5 m. What is its total surface area?

2(3.14)(2²)+2(3.14)(2)(5)=87.92 m²

300

A cone has a radius of 3 cm and a slant height of 5 cm. What is its total surface area?

75.36 cm²

400

A sphere has a surface area of 314 in². What is its radius?

5 in

500

A cylinder has a total surface area of 251.2 cm² and a radius of 4 cm. What is its height?

6 cm

Volume of a Cone

100

A cone has a radius of 3 cm and a height of 4 cm. What is its volume?

37.68 cm³

200

A cone has a volume of 37.68 m³ and a radius of 2 m. What is its height?

9m

300

A cone has a diameter of 6 inches and a height of 10 inches. What is its volume?

94.2 in³

400

A cone has a volume of 200.96 cm³ and a height of 12 cm. What is its radius?

4 cm

500

A cone-shaped container has a volume of 314 cm³ and a radius of 5 cm. What is its height?

12 cm 

Volume of a Sphere

100

A sphere has a radius of 3 cm. What is its volume?

113.04 cm³

200

A sphere has a volume of 33.49 m³. What is its radius?

2 m

300

A sphere has a diameter of 12 inches. What is its volume?

904.32 in³

400

A sphere has a volume of 523.33 cm³. What is its radius?

5 cm

500

A sphere has a volume of 3,052.08 cm³. What is its diameter?

18 cm

Volume of a Cylinder

100

 A cylinder has a radius of 2 cm and a height of 5 cm. What is its volume?

62.8 cm³

200

A cylinder has a volume of 197.82 m³ and a radius of 3 m. What is its height?

7 m 

300

A cylinder has a diameter of 10 inches and a height of 8 inches. What is its volume?

628 in³

400

A cylinder has a volume of 602.88 cm³ and a height of 12 cm. What is its radius?

4 cm 

500

 A cylinder-shaped tank has a volume of 1,130.4 m³ and a radius of 6 m. What is its height?

10 cm 

Math Jokes

100

Why did the cylinder get invited to the party?

It knew how to roll with the crowd.

200

Why was the sphere so calm during math class?

It knew how to keep things well-rounded.

300

 Why did the cone bring a ladder to math class?

It wanted to reach its highest point.

400

Why did the cylinder bring a map?

It was trying to find its base.

500

Why did the sphere refuse to argue about surface area?

It did not want to make a big deal out of every side.