The radius is 9 inches because area of circle is pi*9 squared = 81pi square inches and the diameter is twice the radius which is 2*9 = 18 inches
8 inches; the diameter of a circle is twice its radius.
The diameter of any circle is twice its radius. A circle with a radius of 13 inches will have 2 x 13 = 26 inches for a diameter.
A circle 14 inches in diameter has a radius of 7 inches, and a circle having a radius of 7 inches has a diameter of 14 inches.
The diameter is essentially twice the radius, so therefore a circle with a radius of 54 inches has a diameter of 108 inches.
Two inches. The radius of a circle is 1/2 of the diameter.
The radius of a circle is one-half of the circle's diameter. So if the radius is 12 inches, the diameter is 24 inches.
8 inches; the diameter of a circle is twice its radius.
The diameter of any circle is twice its radius. A circle with a radius of 13 inches will have 2 x 13 = 26 inches for a diameter.
The diameter is double the radius of a circle. So you get 5 inches for the diameter.
A circle 14 inches in diameter has a radius of 7 inches, and a circle having a radius of 7 inches has a diameter of 14 inches.
The diameter is essentially twice the radius, so therefore a circle with a radius of 54 inches has a diameter of 108 inches.
Radius is one-half of the diameter of a circle. Therefore, the radius of an eight-inch diameter circle is four inches. The diameter of a circle is a straight line joining a point on the circumference through the centre to the 'opposite' point on the circumference.
Two inches. The radius of a circle is 1/2 of the diameter.
The radius of a circle is half of the diameter! So, if the diameter was four inches, the radius would be two inches!
6 inches. always multiply radius by 2 to get diameter
its 4..... the radius of a circle is half of the diameter
The radius of any circle is half the diameter.