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22-01-2021
Mathematics

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A circle has an area of 2290.221. What is the radius? (round to the nearest whole number)

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22-01-2021

Answer: 27

Step-by-step explanation:

use the formula for the area of circle and solve for r: A=pi r^2

2290.221=pir^2 <---divide by pi

729=r^2 <--- square root both sides

27=r

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