Radius
Distance from the center to a point on a circle
The radius is a line segment connecting the center of a circle or sphere to any point on its circumference or surface, respectively. In mathematical terms, the radius is defined as the distance from the center of a circle or sphere to any point on its circumference or surface, respectively. The symbol used to represent the radius in mathematical equations is ‘r.’ The radius is important because it is used to calculate the circumference, area, and volume of circles and spheres. The formula to find the circumference of a circle is 2πr, where π is equal to approximately 3.14. The formula to find the area of a circle is πr². The formula to find the volume of a sphere is 4/3πr³.
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