Q: What is the diameter of 18ft radius of a circle?

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Circumference of a circle = 2*pi*radius or diameter*pi

Circumference = 2(pi)r if diameter = 18ft then the radius is 9ft, so: Circumference = 2(pi)9 = 56.54ft =] -ray

The diameter of a circle is twice its radius

The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.

The diameter of a circle is twice its radius

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Circumference of a circle = 2*pi*radius or diameter*pi

Circumference = 2(pi)r if diameter = 18ft then the radius is 9ft, so: Circumference = 2(pi)9 = 56.54ft =] -ray

The diameter of a circle is twice its radius

The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.

The diameter of a circle is twice its radius

The radius of a circle is always half of the diameter. If the diameter is 85.4, the radius is 42.7.

The radius of a circle is half of the diameter, so the radius of a circle with a diameter of 14in is 7in.

area of circle = pi x radius squared where pi = 3.1416 radius = diameter/2 = 18/2 = 9 ft area = 3.1416 x 9 x 9 sq ft = 254 sq ft

The radius of a circle is half the diameter, so the radius of a 6 inch diameter circle is 3 in.

The radius is half of the diameter of a circle

The radius of a circle is half of its diameter

The diameter of a circle is twice its radius.