document.write( "Question 286437: The perimeter of a square is 100 inches. How many square tiles 1 inch on each edge
\n" ); document.write( "are needed to cover its area? \n" ); document.write( "

Algebra.Com's Answer #207743 by jim_thompson5910(35256) $\"\"$ $\"About$

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The perimeter of a square is $\"P=4s\"$ which means that $\"100=4s\"$ . Solve for s to get $\"s=25\"$ . So the length of the side is 25 inches long.\r
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\n" ); document.write( "\n" ); document.write( "The area of a square is $\"A=s%5E2\"$ . In this case, $\"A=25%5E2=625\"$ . So the area of the square is 625 square inches. Since each tile has a side length of 1 inch, the area of each individual tile is $\"A=1%5E2=1\"$ square inch.\r
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\n" ); document.write( "\n" ); document.write( "So you'll need $\"625%2F1=625\"$ tiles to cover the square. \n" ); document.write( "

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