Circle and Cylinder Review

Circles

100

The diameter of a circle is 10 inches.  What is the circumference? Use 3.14 for pi.

What is 31.4 inches.

200

The radius of this circle is 21 centimeters. What is the area rounded to the nearest hundredth?

What is 1384.74 cm²

300

The radius for this circle is 45. What is the circumference?

What is 282.6

400

The diameter is 30. What is the area?

What is 706.5?

500

The circumference of a circle is 50.24 km. What is the circle's radius? Use 3.14 for pi. 

What is 8 km.

Surface Area

100

A cylinder with a radius of 5cm, and a height of 5cm. 

What is SA≈ 314cm²

200

A cylinder with a radius of 1cm, and a height of 2cm.

What is SA≈18.85cm²

300

A cylinder with a diameter of 14cm, and a height of 16cm.

What is SA ≈1011.59

400

A cylinder with a diameter of 7.5cm, and a height of 13.7cm.

What is SA ≈ 411.16cm²

500

A cylinder with a diameter of .4cm, and a height of 3cm.

What is SA≈4.02

Volume

100

A cylinder with a radius of 6cm, and a height of 2cm.

What is V≈226.19cm³

200

A cylinder with a radius of 5m, and a height of 15m.

What is V≈1178.1m³

300

A cylinder with a radius of 3.2cm, and a height of 10.5cm.

What is V≈337.78cm³

400

A cylinder with a diameter of 4cm, and a height of 11cm.

What is V≈552.92cm³

500

A cylinder with a diameter of 7.5cm, and a height of 13.7m

What is V≈2420.99m³

Word Problems

100

Jar 1: radius 2cm height 3cm 

Jar 2: radius 7cm height 4cm 

One of these jars holds more water. 

What is jar two. Jar 1=37.7cm³ Jar 2=615.75cm³

200

A can of paint is 20cm wide and has a height of 28cm. This answer is the amount of paint inside of it, in cm. 

What is V≈ 8796.46cm³

300

Joel and Carlo are wrapping spray cans in stacks of five for a class project. The radius is 4.5cm and the height is 3.5cm. This answer is the amount of paper they need to wrap each stack of spray cans. 

What is ≈1113.3cm³

400

A pipe tube has a volume of 35.2 m³ and a diameter of 3 m. This answer is the height of the tube.

What is ≈4.98m

500

Ms. C bought a lip gloss that can hold 30.4 cm³ worth of gloss and is 1.5cm wide. This answer is the height of the lip gloss. 

What is h≈ 4.3cm

Random circle and cylinder knowledge

100

The radius of this circle is 2.5. What is the diameter?

What is 5

200

The diameter of this circle is 27. What is the radius?

What is 13.5

300

The distance from the center of a circle to the outside, also half of the diameter

What is radius

400

The longest part in a circle. From one edge to the other through the center.

What is the Diameter

500

The amount of space a 3D object takes up.

Volume