document.write( "Question 148545: what is the length of one side of a square that has an area of 289 in^2? \n" ); document.write( "
Algebra.Com's Answer #108881 by Edwin McCravy(20054)\"\" \"About 
You can put this solution on YOUR website!
what is the length of one side of a square that has an area of 289 in2?
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document.write( "Count the little squares, pretending they are each 1 in2 each.\r\n" );
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document.write( "You'll find there are 289 of them\r\n" );
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document.write( "\"drawing%28300%2C300%2C1%2C19%2C1.2%2C19.2%2C+grid%281%29+%29\"\r\n" );
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document.write( "Count the length of each side.  You'll find there are 17 on a side.\r\n" );
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document.write( "How do we find it without drawing and counting?\r\n" );
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document.write( "Use the formula:\r\n" );
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document.write( "\"A=s%5E2\"\r\n" );
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document.write( "Substitute 289 for A\r\n" );
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document.write( "\"289=s%5E2\"\r\n" );
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document.write( "Take the square root of both sides:\r\n" );
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document.write( "\"sqrt%28289%29=sqrt%28s%5E2%29\"\r\n" );
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document.write( "Get your calculator and take the square root of 289.\r\n" );
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document.write( "You'll get 17.  So\r\n" );
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document.write( "\"17=s\"\r\n" );
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document.write( "So each side of that square is 17 inches long. \r\n" );
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document.write( "Edwin
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