Question

The area of circle can be expressed by the

formula A = ar?where r is a radius of circle.
express radius in terms of area of circle.

Answer 1

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Answer:

r = √(A/π)

Explanation:

Solve for r. Do this by dividing by the coefficient of the r² term, then taking the square root.

A = πr²

A/π = r²

r = √(A/π)