QueenElizabeth935 QueenElizabeth935

08-06-2022
Mathematics

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A circle has a area of 49 pie cm2 work out its radius

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upandover upandover

08-06-2022

Area of a circle: pi x r^2

49 pi = pi x r^2

49 = r^2

r = +/- 7

---In this case, the radius is a measurement, so the answer must be positive.

r = 7

Hope this helps!

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