Raymond B. answered • 12/01/21
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Area = pir^2
r = 20, Area = 400pi
d=30, then r= 15, Area = 225pi
difference in area is 400pi-225pi = 175pi
Frederick B.
asked • 12/01/21The difference in area between a circle with a 20 inch radius in a circle with a 30 inch diameter is
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