The diameter of a circle is simply twice the radius. It is the length of a chord running thru the center point of the circle. Can also be found by taking the circumference and dividing it by pi.
you do not need to know the circumference to find the diameter. You just need to measure one side of the circle to the other .
Radius is one-half of the diameter of a circle. Therefore, the radius of an eight-inch diameter circle is four inches. The diameter of a circle is a straight line joining a point on the circumference through the centre to the 'opposite' point on the circumference.
The radius of a circle is half its diameter (the measure of the circle from one side across to the other).
Diameter of a circle = circumference/pi
The width, or the length of a circle are its diameter.
Diameter = circle's circumference/pi
Divide the known circumference by pi to find the diameter of the circle.
The diameter of a circle is 2 times the radius. The radius of a circle is the distance from any point on the circle to the center of the circle, and the diameter is the distance from one side of the circle to the opposite side, passing through the center.
-- Find the circumference of a full circle with a diameter of 12 mm.-- The perimeter of the semi-circle is(1/2 the circumference of the full circle) + (the diameter).
To find the diameter you need to know what the radius of the circle which is from the center to the circumference ,the edge, then you times it by two and that's how yo find the diameter
The diameter of a circle is simply twice the radius of the circle. The radius is a line that starts from the center of the circle to the circumference of the circle. The diameter is a line that passes through the circle. diameter=2xradius
The circumference of a circle is the diameter times pi (3.14)