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OpenStudy (shelby1290):
The radius, r, of a circle has been increased by k. Both r and k are measured in the same units. Write a formula for the area of the new circle . Expand and simplify
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OpenStudy (anonymous):
r+k is now the radius
OpenStudy (anonymous):
\[\pi (r+k)^{2}\]
OpenStudy (shelby1290):
@10115658 the formula can also be A = πr^2 + 2 πrk + πk^2 right?
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