The perimeter of a circle is called its "circumference".
Its length is the diameter multiplied by (pi).
8 pi = 25.133 (rounded)
Chat with our AI personalities
A circle with an 8-inch diameter has a perimeter of 25.1 inches.
The perimeter or circumference of a circle = diameter times pi
The perimeter is the diameter times pi. So the perimeter is 20pi ft
Multiply the diameter by pi.
The radius of a circle is a line that starts at the center of the circle and ends somewhere along the perimeter of the circle. The diameter is a line that starts at the perimeter of a circle, goes through the center of the circle, and ends at the opposite perimeter of the circle. This a diameter is twice as long as a radius and can be thought or as consisting of two radii.