Radius of a Circle - Formula | What is Radius? | Radius Formula
https://www.cuemath.com/geometry/radius/
WebLet us use these formulas to find the radius of a circle. When the diameter of a circle is known, the formula is, Radius = Diameter/ 2. For example, if the diameter is given as 24 units, then the radius is 24/2 = 12 units. When the circumference of a circle is known, the formula is, Radius = Circumference/2π.
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