Circumference is pi * diameter, or pi * 2 * radius, so if you are given circumference, then radius = circumference / 2 / pi. Pi is approximately 3.1416
Radius is from the center to the edge. Diameter is twice that (from one edge, through the center to the other edge). Radius = Diameter / 2, so if you're given Diameter, then just divide by 2.
Divide the circumference by 2PI to find the radius. ( C = 2PI*Radius)
You times the radius by 2.
The diameter of the semicircle will be twice the radius.
At first my friend, you haven't stated of what kind of body are you looking to find the radius.
The radius of a sphere is 1/2 of its height.
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.
Divide the circumference by 2PI to find the radius. ( C = 2PI*Radius)
the radius is half the diameter
The radius is half the diameter.
Double the radius
The question is meaningless. A radius is not a measurement unit. A radius can be thousands of miles or thousandths of a mile.
You times the radius by 2.
divide diameter by 2 = radius
The diameter of the semicircle will be twice the radius.
The radius of a cylinder given only the height could be anything you like.
You just multiply the given radius by 2. That is diameter is just double of the radius. This is universal formula.
At first my friend, you haven't stated of what kind of body are you looking to find the radius.