Area of Circles
Find the area of a circle with a radius of 4 cm. Use 3.14 for pi. Round your answer to the nearest hundredth.
50.24 cm2
Find the circumference of a circle with a radius of 5 cm. Use 3.14 for pi.
31.4 cm
Find the volume of a rectangular prism with a length of 6 cm, width of 4 cm, and height of 3 cm.
72 cm³
Find the diameter of a circle that has a circumference of 31.4 cm.
10 cm
The circumference of a circle is 94.2 inches. Find the diameter of the circle.
30 inches
A circle has a diameter of 10 inches. What is the area? Use 3.14 for pi.
78.5 in2
A circle has a diameter of 12 inches.
What is the circumference? Use 3.14 for pi.
37.68 in
Find the volume of a cylinder with a radius of 3 cm and a height of 5 cm. Use 3.14 for pi.
141.3 cm³
Find the radius of a circle that has a circumference of 37.68 cm.
6 cm
A shipping crate measures 2.5 m by 1.2 m by 0.8 m.
What is the volume of the crate?
2.4 m³
Find the area of a circle with a radius of 2.5 feet. Use 3.14 for pi. Round to the nearest tenth.
19.6 ft2
A circular track has a radius of 9 meters.
How far is one lap around the track? (Find the circumference.)
Use 3.14 for pi.
56.52 m
A storage box is shaped like a rectangular prism. It is 10 inches long, 5 inches wide, and 8 inches tall.
What is the volume of the box?
400 in³
If the area of the circle is 452.16 in², what is the radius?
12 in
The diameter of a circular pool is 18 meters.
A deck will cover half of the pool’s surface.
How much area will the deck cover?
127.17 m²
The area of a circle is 78.5 square meters. What is the radius of the circle? Use 3.14 for pi.
5 meters
Find the circumference of a circle with a diameter of 7.5 feet.
Use 3.14 for pi. Round your answer to the nearest tenth.
23.6 ft
Find the volume of a cylinder with a diameter of 8.4 meters and a height of 6 meters. Use 3.14. Round to the nearest tenth.
332.3 m³
A cylinder has a height of 17 meters. Its volume is 21,352 cubic meters. What is the radius (to the nearest hundredth) of the cylinder? Use 3.14 for pi.
20 m
A pencil box is 13 inches long and 5 inches tall, and it has a volume of 162.5 cubic inches. How wide is the pencil box?
2.5 inches
Find the area of a semi-circle with a diameter of 14 cm. Use 3.14 for pi. Round to the nearest hundredth.
76.93 cm2
The circumference of a circle is 62.8 centimeters.
What is the radius of the circle?
Use 3.14 for pi.
10 cm
A soup can is shaped like a cylinder with a radius of 4 cm and a height of 12 cm.
How much soup can the can hold? Use 3.14 for pi.
602.88 cm³
A cylinder has a radius of 16 yards. Its volume is 16,076.8 cubic yards. What is the height of the cylinder?
20 yd
A shipping company packs boxes into a larger storage container. The container is shaped like a rectangular prism with a length of 15 cm, a width of 8 cm, and a height of 10 cm. Each package takes up 600 cm³ of space. How many packages can fit inside the container?
2 packages