document.write( "Question 429662: Calculate the shaded area inside the circle of perimeter 50pi units.
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Algebra.Com's Answer #298415 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "perimeter(circumference) = 50pi units = \"pi%2Ad\" r = 25 units
\n" ); document.write( "Area(cirlce) = \"pi%2Ar%5E2\" = 625pi units^2 \n" ); document.write( "
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