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You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).

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

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

Measure the diametre of the circle and divide by two to give the radius.

The diameter is the length of a line touching both sides of the circle and passing through the centre. The radius is the length of a line from the centre to touching the circle, and is half the length of the diameter, the diameter then is twice the length of the radius > diameter = radius * 2 = 32 * 2 = 64

The radius of a circle is the length of the line from the center of the circle to any point on its edge.

The radius of a circle is the distance from its centre to its circumference. If a circle has a radius of r units then the length of its circumference is 2*pi*r units.

Related questions

radius = diameter/2

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

Measure the diametre of the circle and divide by two to give the radius.

The radius of a circle is any straight line from the centre of the circle to its circumference. The radius can also refer to the length of this line.

The diameter of a circle is 2 times the radius. The radius of a circle is the distance from any point on the circle to the center of the circle, and the diameter is the distance from one side of the circle to the opposite side, passing through the center.

If you are given a chord length of a circle, unless you are given more information about the chord, you can not determine what the radius of the circle will be. This is because the chord length in a circle can vary from a length of (essentially) 0, up to a length of double the radius (the diameter). The best you can say about the radius if given the chord length, is that the length of the radius is at least as long has half half the chord length.

The approximate radius is five (5) inches.

The diameter is the length of a line touching both sides of the circle and passing through the centre. The radius is the length of a line from the centre to touching the circle, and is half the length of the diameter, the diameter then is twice the length of the radius > diameter = radius * 2 = 32 * 2 = 64

The radius of a circle is the length of the line from the center of the circle to any point on its edge.

length=n/360*2*pi*radius

Radius is half the length from one side of a circle to the other or half the diameter.

The radius of a circle is the distance from its centre to its circumference. If a circle has a radius of r units then the length of its circumference is 2*pi*r units.