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OpenStudy (anonymous):
The area of a circle is approximately 3.14 time the radius squared. Which of the following expressions is a correct way to write this, if the radius is r?
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jimthompson5910 (jim_thompson5910):
Area: \[\Large A = 3.14r^2\]
jimthompson5910 (jim_thompson5910):
More formally, you'll see the area of a circle as \[\Large A = \pi r^2\] where \[\large \pi\] is 3.14159...
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