Circle Terms
The distance from one side of the circle through the center to the other side.
Diameter
The distance around the circle.
Circumfrence
The radius is 2.5
What is 5
The total amount of space inside of a circle
area
The radius is 50
100
What is pi?
3.14
15
The radius is 10
20
The diameter of the circle is 10
78.5