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A circle with a radius of 18 inches has an area of 1,017.88 square inches.
A circle with a radius of 18 centimeters has an area of 1017.88 square centimeters.
A circle with a radius of 9 cm has an area of 254.47 square cm
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
The area is 1,020 square inches.
A circle with a radius of 18 centimeters has an area of 1,017.88 square centimeters.
A circle with a radius of 18 inches has an area of 1,017.88 square inches.
Area of a circle = pi (3.14) times the radius squared.
Area is 1,017.9 units2
The radius is 18 cm
1,017.9 m2
A circle with a radius of 18 centimeters has an area of 1017.88 square centimeters.
A circle with a radius of 9 cm has an area of 254.47 square cm
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
The area is 1,020 square inches.
Area of any circle = pi*radius squared
i believe that it is 18 if the radius is 9 edit: wrong, area = pi*radius^2 so it's 3.1415926535*81=254.469