The radius is equal to half of the diameter. So the radius in this case would be 18/2 = 9 inches.
The area of a circle whose diameter is 18 inches is: 254.5 square inches.
The circumference of a circle that has a diameter of 18 inches is about 56.55 inches. (C = d x Pi).
The circumference of a circle with a diameter of 18 inches is 56.5 inches.
18 inches
An 18" diameter circle has a circumference of about 56.5 inches.
The area of a 18-inch diameter circle is: 254.5 square inches.
18 inches
If the diameter of a circle is 18 inches then its radius is 18/2 = 9 inches
The circumference of a circle of 18 inches in diameter is about 56.55 inches.
A circle with a radius of 18 inches has a circumference of 113.097 inches.
The circumference of a circle with an 18-inch diameter is about 56.55 inches. (C = d x Pi)