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

If you were to express how to find the area of the SIDE of a cylinder, you might say that you can multiply the height by what other feature of the cylinder?

The circumference of its base.

300

Find the surface area of a cylinder that has a radius of 2 cm and a height of 5 cm. Use 3.14.

87.92 square centimeters

400

What is the surface area of a cylinder whose height is 3.8 meters and whose diameter is 6 meters? Leave your answer in terms of π

40.8 square meters

500

The height of a cylinder is 12 and the radius is 10. What is the surface area? (Use 3.14 for Pi. Be sure to include appropriate units!)

1381.6 square cm

Circumference

100

What is the circumference of a circle with a diameter of 9 cm? Use 3.14.

28.26 cm

200

What is the circumference of a circle with a radius of 9 cm? Use 3.14.

56.52 cm

300

What is the circumference of a circle with a diameter of 12.6 m? Use 3.14 for π and round to the nearest tenth.

39.6 m

400

What is the radius of a circle that has a circumference of 31.4?

5

500

The circumference is 50.24, what is the radius?

4

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 3.14 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 3.14 and round your answer to the nearest tenth.)

15.9 cm

400

A tractor wheel has a circumference of 12 meters. What is the radius of the wheel? Use 3.14 and round your answer to the nearest tenth of a centimeter. 

1.9 m

500

A car wheel has a circumference of 1.57 meters. Calculate the diameter of the wheel. Use 3.14. 

.5 m

Area of Circles

100

What is the area of a circle with a radius of 5 cm? Use 3.14

78.5 square centimeters

200

What is the area of a circle with a radius of 4.9 cm? Use 3.14

75.3914 square centimeters

300

What is the area of a circle with a diameter of 13 cm? Use 3.14.

132.665 square centimeters

400

What is the area of a circle with a radius of 4 cm? (Use the 3.14)

50.24 square centimeters

500

What is the diameter of a circle with an area of 28.26 square cm? (Use 3.14)

6 centimeters

Volume of Cylinders

100

Write the formula for the volume of a cylinder 

 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 3.14.

957.7 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 3.14. Round to the nearest whole number.

79535 cubic centimeters

400

What is the volume of a cylinder with a radius of 3 cm and a height of 12 cm? (Use 3.14)

339.12 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 3.14)

2512 cubic centimeters