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OpenStudy (anonymous):
The surface area of the top surface of the water in a circular swimming pool is about 206 square feet. Estimate the radius of the pool, to the nearest foot. a) about 14 ft b)about 8 ft c)about 11 ft d) about 10 ft
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OpenStudy (mertsj):
Well, let's think. The area is the radius squared multiplied by pi.
OpenStudy (mertsj):
Pi is about 3. What number multiplied by 3 is around 206?
OpenStudy (anonymous):
aroung 68
OpenStudy (mertsj):
So the radius squared is around 68. What number squared is close to 68?
OpenStudy (anonymous):
8
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OpenStudy (mertsj):
Then choose 8
OpenStudy (anonymous):
thank you
OpenStudy (mertsj):
yw
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