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OpenStudy (anonymous):
A patio in the shape of a semicircle has a diameter of 21 ft. What is the approximate area of the patio, rounded to the nearest square foot? Use 3.14 to approximate pi ? ft2
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OpenStudy (igreen):
\(\sf A = \pi r^2\) We're given the diameter, so divide it by 2 to find the radius.
OpenStudy (anonymous):
3.14*10.5*10.5
OpenStudy (igreen):
That is correct.
OpenStudy (igreen):
Now multiply it.
OpenStudy (anonymous):
346.185
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OpenStudy (igreen):
Correct
OpenStudy (anonymous):
So just 346
OpenStudy (anonymous):
@iGreen
OpenStudy (igreen):
Yes
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