Question 847328
Two circles have the same center. The radius x of the smaller circle is 5 units less than
the radius of the larger circle. How many more square units does the larger circle cover?
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larger area - smaller area
Ans: pi*r^2 - (pi(r-5)^2)
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pir^2 - (pir^2 - 10pir + 25pi)
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= (10pi*r-25pi) units^2
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Cheers,
Stan H.
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