Circles and Cylinders

Surface Area of Cylinders

100

The net of a cylinder is made from what three shapes?

Two circles and a rectangle.

200

Find the surface area of a cylinder with a diameter of 8 in. and a height of 3.5 in. Use 3.14 for pi.

100.48 inches cubed

300

Find the surface area of a cylinder that has a radius of 2 cm and a height of 5 cm. (Use the Pi button and round to the nearest whole number. Be sure to include appropriate units!)

88 square centimeters

400

What is the surface area of a cylinder whose height is 3.8 meters and whose diameter is 6 meters? (Use the Pi button and round to the nearest tenth. Be sure to include appropriate units!)

128.2 square meters

500

What is the height of a cylinder whose radius is 10 and whose total surface area is 1381.6 square centimeters? (Use 3.14 for Pi. Be sure to include appropriate units!)

12 cm

Circumference

100

What is the circumference of a circle with a diameter of 9 cm? (Use the Pi button and round to the nearest hundredth)

28.27 cm

200

What is the circumference of a circle with a radius of 9 cm? (Use the Pi button and round to the nearest hundredth)

56.55 cm

300

What is the circumference of a circle with a diameter of 12.6 m? (Use the Pi button and round to the nearest tenth.)

39.6 m

400

What is the circumference of a circle with a diameter of 56 feet? 

175.84 feet 

Diameter & Radius

100

What is the diameter of a circle with a radius of 15 cm?

30 cm

200

What is the radius of a circle with a circumference of 37 cm? (Use the Pi button and round to the nearest tenth.)

5.9 cm

300

A machine makes circular paper plates that have a circumference of 50 cm. What is the diameter of each plate? (Use the Pi button and round your answer to the nearest tenth.)

15.9 cm

400

A trundle wheel has a circumference of 1.2 meters. What is the diameter of the wheel? Use the Pi button and round your answer to the nearest tenth of a centimeter. NOTE: 1 meter = 100 centimeters

38.2 cm

500

A car wheel has a circumference of 1.57 meters. Calculate the diameter of the wheel. Use the Pi button and round your answer so that it is correct to the nearest centimeter.

50 cm

Area of Circles

100

What is the area of a circle with a radius of 5 cm? (Use the Pi button and round to the nearest tenth. Be sure to include appropriate units!)

78.5 square centimeters

200

What is the area of a circle with a radius of 4.9 cm? (Use the Pi button and round to the nearest tenth. Be sure to include appropriate units!)

75.4 square centimeters

300

What is the area of a circle with a diameter of 13 cm? (Use the Pi button and round to the nearest tenth. Be sure to include appropriate units!)

132.7 square centimeters

400

What is the area of a circle with a radius of 6.5 centimeters? Round to the nearest tenth. 

132.7 cm squared

500

What is the area of a circle with a diameter of 56 inches?

2,461.76 inches squared

Volume of Cylinders

100

The volume of a cylinder is given by the formula: V = _______________

(Pi)(r^2)(h)

200

What is the volume of a cylinder with a radius of 5 cm and a height of 12.2 cm? (Use the Pi button and round to the nearest tenth. Be sure to include appropriate units!)

958.2 cubic centimeters

300

What is the volume of a cylinder with a diameter of 52.4 cm and a height of 36.9 cm? (Use the Pi button and round to the nearest whole number. Be sure to include appropriate units!)

79,575 cubic centimeters

400

What is the volume of a cylinder with a radius of 3 cm and a height of 12 cm? (Use the Pi button and round to the nearest whole number. Be sure to include appropriate units!)

339 cubic centimeters

500

What is the volume of half a cylinder with a diameter of 16 cm and a height of 25 cm? (Use the Pi button and round to the nearest whole number. Be sure to include appropriate units!)

2513 cubic centimeters