Radius
The radius of a circle is the distance from the center of the circle to any point on its boundary or circumference
The radius of a circle is the distance from the center of the circle to any point on its boundary or circumference. It is the measurement of the line segment from the center to a point on the circle. The length of the radius is denoted by the symbol “r” in mathematical equations.
In simple terms, imagine drawing a circle on a piece of paper and placing a dot at its center. The distance from that center dot to any point along the circle’s edge is the radius.
The radius is an important measurement for circles as it helps calculate various properties of the circle. For instance, the circumference of a circle is directly related to its radius through the formula C = 2πr, where “C” represents the circumference and “π” is a mathematical constant approximately equal to 3.14159. The area of a circle can also be calculated using the formula A = πr^2, where “A” represents the area.
Moreover, the radius plays a significant role in the calculation of other geometric figures associated with circles, such as the diameter (which is equal to 2r) and chord (a line segment connecting any two points on the circumference).
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