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Q: How do you find the radius of a circle given the diameter?

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Double the radius

You times the radius by 2.

Divide the diameter by 2.

Diameter of a circle = 2*radius Circumference of a circle = 2*radius*pi

The longest chord in a circle is its diameter and halve of this is its radius.

you cant: pi is the same for any circle - 3.1415... the diamter or the radius has to be given diameter divided by two equals the radius the radius times two equals the diameter

well, the radius is half of the diameter, so if i were you id divide by two

Area of a circle = pi*radius2 Radius = diameter/2

the radius is half the diameter

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

Radius is one-half of the diameter of a circle. Therefore, the radius of an eight-inch diameter circle is four inches. The diameter of a circle is a straight line joining a point on the circumference through the centre to the 'opposite' point on the circumference.

multiple the diameter by 2 to get the radius, then use your equation and go from there

If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)

When you have the radius of a circle and you are trying to find the diameter, multiply the radius by two; the answer is the diameter. If you have the diameter and want to find the radius, divide the diameter by two; the answer will be the radius. The diameter is 54 centimeters.

If the circumference or diameter is given then you can find the radius or simply measure the distance from the centre of the circle to the circumference.

Diameter = 2*Radius

The radius is half the diameter.

To find the circumference of a circle the formula is: 2*pi*radius or diameter*pi

diameter is 2 times the radius 24

The diameter of a circle is simply twice the radius of the circle. The radius is a line that starts from the center of the circle to the circumference of the circle. The diameter is a line that passes through the circle. diameter=2xradius

The radius of a circle is half of the diameter. Radius= Diameter divided by 2

radius = diameter/2

the radius is half the diameter

The radius is half the diameter.

It is twice the radius of a circle