document.write( "Question 824393: Find area and perimeter of a square plot of land, length of whose diagonal is 15 metres. \n" ); document.write( "
Algebra.Com's Answer #496469 by LinnW(1048)\"\" \"About 
You can put this solution on YOUR website!
If we can find the side length of the square we can
\n" ); document.write( "find the area and perimeter.\r
\n" ); document.write( "\n" ); document.write( "Let s = the side length of the square.\r
\n" ); document.write( "\n" ); document.write( "\"s%5E2+%2B+s%5E2+=+15%5E2\"
\n" ); document.write( "\"2s%5E2+=+15%5E2\"
\n" ); document.write( "\"2s%5E2+=+225\"
\n" ); document.write( "\"s%5E2+=+225%2F2\"
\n" ); document.write( "\"s+=+sqrt%28225%2F2%29\"
\n" ); document.write( "The area = \"sqrt%28225%2F2%29+%2A+sqrt%28225%2F2%29\" = 225/2 = 112.5 sqft
\n" ); document.write( "The perimeter = \"4%2Asqrt%28225%2F2%29\"ft
\n" ); document.write( "
\n" );