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20 March, 23:51

The area of a circle is 25pi. what is the circumfrerence in terms of pi?

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  1. 21 March, 03:02
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    Hello!

    Given that the area of a circle is found by using the formula: A = πr². Also, the circumference of a circle is: C = 2πr.

    In order to find the circumference, we need to find the radius first. We can substitute the area into the area formula and solve for r.

    25π = πr² (divide both sides by π)

    25 = r² (take the square root of both sides)

    r = 5

    The radius of this circle is 5 units. With the radius, we can find the circumference.

    C = 2π (5)

    C = 10π, which is equal to about 31.4 units.

    Therefore, the circumference of the circle is 10π units.
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