A radius is one half the diameter...........1/2.............................................with a radius of 1/2...........full circle...........would be pi................................or put in other words..........the circumference of a circle.......with a radius = 1/2...........would be exactly pi.............the area of a circle........with a radius of 1..............as in the unit circle..............would be exactly pi............a radius is one half the diameter..........see the pattern?  It is between the numbers themselves and the processes...........and the parts of the geometry............................

Diameter is the ratio of the circumference of the circle to the irrational constant 'pi' (3.1415...). Radius is the half of the diameter. Actually pi is defined to be the ratio of the circumference of the circle to the diameter of the circle. Therefore, you can solve for the diameter from that equation.Oct 1, 2016

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What is the relationship between the diameter and the circumference of a circle?

TT (often written pi) is a mathematical constant whose value is the ratio between circumference and diameter of any circle in a Euclidean space, is the same value as the ratio of area of a circle and square of its radius. pi=2*pi*R/2*R, where 2*pi*R=circumference of any circle and 2*R=D=diameter of any circle.

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How is the diameter related to the radius of a circle?

The radius of a circle is the distance from the center of the circle to the outside edge. The diameter of a circle: The diameter of a circle is longest distance across a circle. (The diameter cuts through the center of the circle.

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Is the diameter twice the radius of a circle?

No. The diameter of a circle is the longest distance away from each other 2 points on a circle can be. ... (Note: When the radius is 2, the diameter will be equal to the radius squared, because the radius squared will be equivalent to the radius times 2, which is the diameter.

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What is the relationship between the radius and circumference of a circle?

The radius of a circle is the distance from the center of a circle to any point on the circle. If you place two radii end-to-end in a circle, you would have the same length as one diameter. Thus, the diameter of a circle is twice as long as the radius.

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Radius, diameter, & circumference (article) | Khan Academy

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Learn the relationship between the radius, diameter, and circumference of a circle.

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Diameter of a circle is twice of its radius.