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09-03-2018
Mathematics

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Jose’ has a circular rug on the floor of his bedroom. If the area of the rug is 16π square feet, what is the diameter of the rug?

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altafmushrafp5fo2o altafmushrafp5fo2o

12-03-2018

area of a circle is πr^2
so
16π = πr^2
the π's in both sides cancel out as it is a constant.
so it's
16 = r^2
r = √16
r = 4
so if radius so 4 then diameter is 8
because Radius is half the diameter.

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