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The area of a semicircle is 56.52 square kilometers. What is the semicircle's diameter?

Use 3.14 for ​𝜋.

 Nov 20, 2022
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12, First of all, it is a semi-circle so let's multiply the area by 2. 56.52x2=113.04. Now you said that we can use 3.14 for pi so we can divide 3.14 from both sides. Once we do 113.04/3.14 we get 36. Now the formula for the area of a circle is r^2pi and we already got rid of pi. So 36=r^2 we take the square root of both sides to get r=6. The diameter is 2r so 6x2 = 12, which is our answer.

 Nov 20, 2022

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