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How you calculate the radius of a circle?
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How you calculate the radius of a circle?

User Liselle
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1 Answer

6 votes

Answer:

When the diameter is known, the formula is Radius = Diameter/ 2.

When the circumference is known, the formula is Radius = Circumference/2π.

When the area is known, the formula for the radius is Radius = ⎷ (Area of the circle/π).

User ChenZ
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