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Q: What is the area of the circle if the diameter is 18 centimeters?

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18

The diameter of a circle with a circumference of 18 is: 5.73

A linear foot is the same as a foot. So, an 18-foot diameter circle would measure 18 linear feet in diameter!

Radius is half the diameter. 18 is the answer.

To find area of a circle, the formula is πr2 where π is pi. Half of the diameter is the radius (r) so you divide 18 by 2 to get the radius (9). then, you square it (multiply it by itself) giving you 81. You then multiply this by pi to get the area. The exact answer is 81π, with a good approximation of: 254.46900494077325231547411404563973361997072134938357149897

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A circle with a radius of 18 centimeters has an area of 1017.88 square centimeters.

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A circle with a radius of 18 centimeters has an area of 1,017.88 square centimeters.

The area of a 18-inch diameter circle is: 254.5 square inches.

The area of a circle, if the diameter is 18 yards, is: 254.5 square yards.

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It is 18 centimeters because your radius is exactly half of the diameter in any circle

18

Area of circle: 81*pi square feet

Area of circle = pi*212 = 1385.44236 square cm Area of rectangle = 1385.44236 square cm Lenght of rectangle = 1385.44236/18 = 76.96902 cm Perimeter of rectangle = 2(76.96902)+2(18) = 189.93804 cm

A circle with a diameter of 18 meters has an area of 254 square meters.

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