document.write( "Question 701425: what is the perimeter of a square whose diagonal is 18 square root of 2 cm long ? \n" ); document.write( "
Algebra.Com's Answer #432414 by shanehhhh47(5)\"\" \"About 
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The relationship when squares have diagonals is we can easily solve it by 45-45-90 triangles. Since the given is the longest side which is 18 sqrt of 2, then the side of the square is simply 18cm.\r
\n" ); document.write( "\n" ); document.write( "P=4s
\n" ); document.write( "P=4(18)
\n" ); document.write( "P=72cm\r
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