Q: If the radius of a circle is 13 inches what is the diameter?

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27 inches

13 in.

13 mm. The radius of a circle is 1/2 of the diameter.

Circumference = 2*pi*rr(radius) = diameter/2 = 13 in/2 = 6.5 inch radiusCircumference = 2*pi(6.5 inches)= 41 inches in circumference===================

The radius is half of the diameter. So if it is 13 cm, the diameter must be 26 cm.

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27 inches

13 in.

Circumference = 13*pi inches or 2*pi*6.5 inches

Diameter is twice the radius, therefore the radius is half the diameter. 13/2 = 6.5

13 mm. The radius of a circle is 1/2 of the diameter.

Circumference = 2*pi*rr(radius) = diameter/2 = 13 in/2 = 6.5 inch radiusCircumference = 2*pi(6.5 inches)= 41 inches in circumference===================

The radius is half of the diameter. So if it is 13 cm, the diameter must be 26 cm.

A circle with a radius of 8 inches has a circumference of 50.27 inches.

By definition the radius of a circle is a straight line drawn from the centre of a circle to its circumference. If you extend that line to the opposite side of the circle it becomes the diameter. The length of the diameter is twice the length of the radius. If the radius is 1316 the diameter is 2632

The circumference of a circle with a 13-inch radius is: 81.68 inches (r x 2 x pi = circumference).

The area of a circle is pi(r)^2 (Pi times r squared) r = (1/2) dSo if the diameter is 13, the radius is 6.5Now use the equation:A=pi(6.5)^2A=pi(42.25)A=132.73 square inches.

26 cm