Radius = Diameter/2.
Radius of a circle = diameter/2
If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi
What name is given to the distance around circle
if you are given the circle's "height" then that is the diameter. the diameter is twice the length of the radius, so divide the height by two and you will get the radius.
The radius of a circle is half of the diameter! So, if the diameter was four inches, the radius would be two inches!
Double the radius
you have multiplythe radius by 2 to get the diameter
Diameter =2R(whare R-Radius of the circle)
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
In order to fully understand what the radius of a given circle is, you must know the diameter. The diameter is the distance across the circle through the center. The radius of a circle is half the diameter. For example, if the diameter of a circle is 8 inches, then the radius would be 4 inches.
You times the radius by 2.
Divide the diameter by 2.