Area of a Circle: Calculating Radius from Area

AI Thread Summary
The area of a circle is calculated using the formula πR², where R is the radius. If a circle has an area of t square units, then a circle with double that area, or 2t, will have a radius of 2R. This relationship illustrates that the radius increases linearly with the square root of the area. Experimenting with the formula can provide deeper insights into these geometric relationships. Understanding these principles is essential for accurate calculations in geometry.
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If a circle has an area of t square units and radius r, then a circle with an area of 2t square units has radius 2r.
 
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The area of a circle of radius R is \pi R^2.
Have you tried playing with this formula to find the answer?
 
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