Divide the circumference by the value of Pi, then halve that result.
circumference of a circle = 2*pi*radius or pi*diameter
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 of a circle = 2*radius Circumference of a circle = 2*radius*pi
If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)
To find the circumference of a circle the formula is: 2*pi*radius or diameter*pi
Divide the circumference by (2*pi)
Circumference of a circle: 2 x pi x radius.
find the radius of a circle with circumference of 42.1
To find the radius of a circle when given the circumference, you should start with the formula for circumference, which is this: circumference = 2*pi*radius To solve for the radius, you would the have to divide the circumference by 2*pi leaving you with a formula like this: radius = circumference/(2*pi) pi≈3.14159
That will depend on the length of the radius which has not been given but in general the circumference of a circle = 2*pi*radius or diameter*pi
Square root (Area/pi) to get the radius Then 2xRadiusxPi= Circumference
You multiply the radius by 2. Then you multiply the product by pi (3.14)