Skills · Geometry · Geometry Basics
Area of circles
Printable practice with an answer key the engine computes, at three levels, in as many versions as you need.
Problem types
- the radius labeled: a circle with radius 7
- the diameter labeled: a circle with diameter 14
- a word problem: A round rug has a radius of 3 feet. What is its area?
- half a circle: half a circle with diameter 12
- a quarter circle: a quarter circle with radius 8
- the area given, the radius or diameter missing: The area is 153.86. Find the radius.
Sample Sheet · Level 1
Find the area.
Find the area.
Find the area.
Find the area.
Find the area.
Find the area.
Find the area.
Find the area.
Answer key
- 78.5 square units
- 452.16 square units
- 314 square units
- 530.66 square units
- 254.34 square units
- 200.96 square units
- 153.86 square units
- 379.94 square units
Sample Sheet · Level 3
Find the area.- A round garden has a diameter of 16 feet. What is its area?
- A round table has a diameter of 32 inches. What is its area?
Find the area.
The area is 113.04. Find the diameter.
Find the area.
Find the area.
The area is 379.94. Find the radius.
Answer key
- 78.5 square units
- 200.96 square feet
- 803.84 square inches
- 153.86 square units
- 12 units
- 28.26 square units
- 56.52 square units
- 11 units
Make your own
Pick the count, the level and the version, and print it with work space and the key on its own page. The same skill also makes an I Do, We Do, You Do lesson, a Mosaic, a Decoder and more.