document.write( "Question 1120502: 7) A circular rock garden with a diameter of 40 feet is placed in the middle of a square grass yard. If the perimeter of the yard is 100 yards, then how much area is covered by grass? For all calculations involving π, use π≈3.14. \r
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Algebra.Com's Answer #736158 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
The square grass yard is 25 yards on a side; or 75 feet on a side.\r
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\n" ); document.write( "\n" ); document.write( "Whole Square Region, \"75%5E2\" square feet\r
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\n" ); document.write( "\n" ); document.write( "Circular Rock Garden, \"pi%2A%2840%2F2%29%5E2\" square feet\r
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\n" ); document.write( "\n" ); document.write( "Amount of grass area, \"75%5E2-pi%2820%29%5E2\" square feet
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