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Lea
Mathematics
2 September, 04:56
Find the area of a circle with a diameter of 8.
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Tobias Burton
2 September, 05:03
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Hello there! The formula for the area of a circle is πr². In other words, we multiply pi times the radius squared. Radius is ½ of the circle. ½ of 8 is 4. We will raise 4 to the 2nd power. 4² is 16. Now, we will multiply that number by pi. Pi is a repeating decimal, but it's usually okay to just multiply by 3.13. 16 * 3.14 is 50.24. There. The area of the cirlce is 50.24 units².
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