How do you work out the area of a circle?
Answer (3)
A = π r 2 where r is the radius of a circle.
The area of a circle is π (pi) times the Radius squared, which is written: A = π × r2
To find the area of a circle, use the formula A = π r 2 , where r is the radius. First, measure the radius, then square that value, and multiply by π to get the area. For example, if the radius is 5 cm, the area would be approximately 78.5 square centimeters.
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