1. Circumference
What is the formula for the Circumference of a Circle?
C =
2 Pi r
How do I convert a Diameter to a Radius?
How do I convert a Radius to a Diameter?
Diameter div 2
Radius * 2
A = Pi r ^2
What is the formula for the Surface Area of a Cylinder?
SA = 2 pi r h + 2 Pi r ^2
What is the formula for Volume of a Cylinder?
V = Pi r ^2 h
What is the circumference of a circle with a diameter of 9 cm? Use 3.14.
28.26 cm
What is the diameter of a circle with a radius of 15 cm?
30 cm
What is the area of a circle with a radius of 5 cm? Use 3.14
78.5 square centimeters
What is the exact volume of a cylinder with a radius of 5 inches and a height of 10 inches?
250 Pi
What is the circumference of a circle with a radius of 9 cm? Use 3.14.
56.52 cm
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
What is the area of a circle with a radius of 4.9 cm? Use 3.14
75.3914 square centimeters
What is the surface area of a cylinder with a radius of 5 and a height of 10? Use 3.14 for
pi
. Round your answer to the nearest hundredth.
471 m2
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
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
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
What is the area of a circle with a diameter of 13 cm? Use 3.14.
132.665 square centimeters
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
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
What is the radius of a circle that has a circumference of 31.4?
5
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
What is the area of a circle with a radius of 4 cm? (Use the 3.14)
50.24 square centimeters
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
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
The circumference is 50.24, what is the radius?
A car wheel has a circumference of 1.57 meters. Calculate the diameter of the wheel. Use 3.14.
.5 m
What is the diameter of a circle with an area of 28.26 square cm? (Use 3.14)
6 centimeters
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
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