Radius
What is the radius of a circle with a diameter of 4 meters?
2 meters
What is the diameter of a circle with a radius of 6 meters?
12 meters
What is the circumference of a circle with a radius of 1 cm?
2 pi cm or 6.28 cm
What is the area of a circle with a radius of 1 cm?
1 pi cm2 or 3.14 cm2
All points equidistant from a center point.
circle
What is the radius of a circle with a circumference of 20 cm?
10 cm
What is the diameter of a circle with a circumference of 20 cm?
20 cm
What is the circumference of a circle with a radius of 2 cm?
4 pi cm or 12.57 cm
What is the area of a circle with a radius of 2 cm?
4 pi cm2 or 12.57 cm2
Distance from the center of a circle to the edge.
radius
What is the radius of a circle with an area of 16 cm2?
4 cm
What is the diameter of a circle with an area of 16 cm2?
8 cm
What is the circumference of a circle with a radius of 3 cm?
6 pi cm or 18.85 cm
What is the area of a circle with a radius of 3 cm?
9 pi cm2 or 28.27 cm2
Distance all the way around a circle.
circumference
What is the radius of a circle with a circumference of 43.98 centimeters?
7 cm
What is the diameter of a circle with a circumference of 43.98 centimeters?
14 cm
What is the circumference of a circle with a radius of 10 cm?
20 pi cm or 62.8 cm
What is the area of a circle with a radius of 10 cm?
100 pi cm2 or 314 cm2
The distance across a circle through the center.
diameter
What is the radius of a circle with an area of 28.27 centimeters?
3 cm
What is the diameter of a circle with an area of 28.27 centimeters2?
6 cm
What is the circumference of a circle with a diameter of 12 cm?
12 pi cm or 37.7 cm
What is the area of a circle with a diameter of 12 cm?
36 pi cm2 or 113.1 pi cm2
The quantity of space inside a circle.
area of a circle