The radius is one -half of the diameter.
It is the distance from the circle center to any point on the circumference.
Double the Radius to Calculate the Diameter.
Circumference = diameter*pi
Circumference of a circle = 2*pi*radius or pi*diameter
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
The diameter of a circle is twice its radius
Radius of a circle = diameter/2
Radius of a circle = diameter/2
Double the Radius to Calculate the Diameter.
Divide the diameter by 2.
Circumference = diameter*pi
Doubling the radius will give the diameter and times this by pi will give the circumference of the circle.
Circumference of a circle = 2*pi*radius or pi*diameter
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
Of a circle: divide the length of the circumference by the value of Pi (about 3.14159). The answer is the diameter. Half of the diameter is the radius
you have to quote the diameter or radius or circumference of the circle to calculate the area. If diameter 78.53. If radius 314.15. If circumference 7.95
The diameter of a circle is twice its radius
Using the Circumference And Area.