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OpenStudy (anonymous):
A circle with an area of 153.86 square feet. What is the radius and diameter?
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OpenStudy (y1066380):
Equation of calculating the area of circle: pi * r^2
OpenStudy (y1066380):
So, now the area is 153.86 sq ft. 153.86=pi * r^2 You will find the answer
OpenStudy (y1066380):
r is the radius, 2r is the diameter
OpenStudy (wolf1728):
Gotta make a corection Area = PI*radius^2 153.86 = 3.14159*radius^2
OpenStudy (wolf1728):
radius = sqroot(153.86/3.14159) radius = sqroot(48.9752004558) radius = 6.9982254242
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OpenStudy (wolf1728):
Diameter = 2 * radius Diameter = 13.9964508484
OpenStudy (y1066380):
Ya, the same
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