This math skill involves calculating the diameter of a circle by first determining the radius from the given area of the circle. The area provides the basis for solving the radius squared, finding the radius by taking the square root, and then doubling the radius to find the diameter.
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Finding the diameter of a circle from area equation
Test your understanding of finding the diameter of a circle from area equation by practicing it! Work through the below exercises to use it in practice.
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What is the diameter of the circle with this area?
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We know that the area of a circle is Pi times the radius squared, so the radius squared is 16
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Taking the square root of both sides, we see that the radius is 4
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The diameter is twice the radius, which would be a diameter of 8