Diameter
A straight line passing from side to side through the center of a circle or sphere.
The diameter is a term used in geometry to refer to a straight line that passes through the center of a circle or sphere and touches two points on its circumference. It is the longest chord in a circle and it also divides the circle into two equal halves.
The length of the diameter is twice the length of the radius. Therefore, if we know the radius of a circle, we can easily calculate its diameter by multiplying it by 2. Conversely, if we know the diameter, we can find the radius by dividing the length of the diameter by 2.
The diameter is an important parameter of a circle as it is used to calculate the circumference, area, and other geometric properties of a circle. It is also used in various real-life scenarios such as calculating the size of a circular object, like a tire, or the distance across a circular field.
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