document.write( "Question 40618: My Question\r
\n" ); document.write( "\n" ); document.write( "A piece of string 25 cm long goes exactly once around the edge of a plate in the form of a quadrant. Calculate the area of the quadrant.
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Algebra.Com's Answer #26233 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
A quadrant (of a circle) has a perimeter of 2r + (1/2)(pi)r
\n" ); document.write( "If that equals 25, we can solve for r and then plug that into the formula for the area of it...A = (1/4)(pi)r^2
\n" ); document.write( "so we have
\n" ); document.write( "2r + (1/2)(pi)r = 25
\n" ); document.write( "r = 25 / (2 + (1/2)(pi))
\n" ); document.write( "A = (1/4)(pi)r^2
\n" ); document.write( "A = (1/4)(pi)(25 / (2 + (1/2)(pi)))^2
\n" ); document.write( "you can work out the exact value if needed...
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