The diameter of a circle is twice the radius. A circle with a radius of 9 would have a diameter of 18. (9*2=18).
Diameter is twice the radius, so 18 feet.
Draw it with dimensions of (6 cm) by (3 cm).
36 inches. The radius is the distance from the centre to the outside or circumference and trhe diameter is the distance across passing through the centre. Therfore the diameter is twice the distance of the radius.
A circle with a radius of 18 centimeters has an area of 1017.88 square centimeters.
A circle with a diameter of 18 centimeters has an area of 254.47 square centimeters.
A circle with a radius of 18 inches has an area of 1,017.88 square inches.
It is 18 centimeters because your radius is exactly half of the diameter in any circle
Area of a circle = pi (3.14) times the radius squared.
Area is 1,017.9 units2
The radius is 18 cm
Using 3.14 as Pi the area of circle is: 254.34
A circle with a radius of 9 cm has an area of 254.47 square cm
The area is 1,020 square inches.
Divide the area by Pi. Take the square root of the result. This is the radius. Now double the radius to get the diameter. -> Answer = 18