This math skill teaches how to calculate the area of a circle. It involves squaring the radius and then multiplying the result by Pi (approximately 3.14) to find the area.
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Finding the area of a circle from the radius
Test your understanding of finding the area of a circle from the radius by practicing it! Work through the below exercises to use it in practice.
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What's the area of a circle with a radius of 4?
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The area of a circle is pi, times the square of the radius
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We know our radius is 4, and 4 squared is 16, so our area is Pi times 16
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Pi is about 3.14, so our area is 3.14 times 16, or 50.27