The distance from the center of a circle to the outside, also half of the diameter
What is radius
The Diameter of this circle is 5
What is 2.5
The radius of this is 5
What is 10
The longest chord in a circle
What is the Diameter
The diameter is 12
What is 6
The radius of this circle is 3
What is 28.26
A line through the circle.
What is a chord?
The diameter of this circle is 27
What is 13.5
The radius of this circle is 15.7
What is 31.4
The total amount of space inside of a circle
What is the area?
The diameter of this circle is 437
What is 218.5?
The radius of this circle is 18.84
What is 37.68
3.14
What is pi?
The diameter of this circle is 0.325
What is 0.1625
The radius of this circle is 194.68
What is 389.36