Q: How do you find the radius of a circle when giving the circoumfrence?

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find the radius of a circle with circumference of 42.1

you can divide the perimeter(circumference) by pi(3.14) and then once you get your answer you divide that by two giving you the length of the radius of the circle. ex: perimeter = 34pi 34pi/pi 34/2=diameter 16=radius

It depends on the values you have. The base of a cylinder is a circle. If you know the circle's diameter, half it to find the radius. If you know the circle's circumference, divide by 2pi to find the radius. If you know the circle's area, divide by pi and take the square root to find the radius.

The director circle of a circle with radius r is a concentric circle with radius r*sqrt(2).

You already know the radius.

Related questions

find the radius of a circle with circumference of 42.1

you can divide the perimeter(circumference) by pi(3.14) and then once you get your answer you divide that by two giving you the length of the radius of the circle. ex: perimeter = 34pi 34pi/pi 34/2=diameter 16=radius

It depends on the values you have. The base of a cylinder is a circle. If you know the circle's diameter, half it to find the radius. If you know the circle's circumference, divide by 2pi to find the radius. If you know the circle's area, divide by pi and take the square root to find the radius.

The director circle of a circle with radius r is a concentric circle with radius r*sqrt(2).

First you half all the sides, so 4cm, them you multiply by pi, giving the radius as 12pi, or 12.56637061

You already know the radius.

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

It is twice the radius of a circle

The radius of a circle is half its diameter (the measure of the circle from one side across to the other).

Equation for the area circle = pi x radius squared If the area is 144pi, then you need to find the square root of 144, which is 12. Therefore, radius = 12

To find the area of a circle for fifth grade, what one has to do is to first find the radius, the radius is the distance from the central point to all points on the circle, once the radius is found, square the radius. Then multiply the squared radius by pi.

diameter is 2 times the radius 24