Best Answer

If you know the diameter, you can divide it in half.

diameter = 40, 40/2 = radius =20

If you know the circumference, divide the circumference by the value of Pi times 2 (6.28).

circumference = 20, 20/6.28 = radius = 3.184

If you know the area, divide the area by Pi & find the square root of your answer.

area = 50, 50/3.14(Pi) = 15.92, square root of 15.92 = 3.99 = radius

Q: How To Find the radius?

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Divide the circumference by 2PI to find the radius. ( C = 2PI*Radius)

you double the radius to find the diameter.

You already know the radius.

A kite does not have a radius.

squares do not have a radius

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Divide the circumference by 2PI to find the radius. ( C = 2PI*Radius)

you double the radius to find the diameter.

You already know the radius.

squares do not have a radius

A kite does not have a radius.

circumference = pi * 2radius (diameter) so to find radius you use circumference/(2 x pi) this will find radius ----

I guess you mean:"How do you find the radius if you are given the diameter?"You take the diameter and divide it by 2.

double the radius or multiply by 2 the radius

pie times radius squared

diameter = 2*radius

triangles don't have radius'

to find the radius you have to measer trow the circle then divid by 2