document.write( "Question 255613: A triangle has sides which are 9, 40, and 41 millimeters long. How could you determine if this triangle is or is not a right triangle? \n" ); document.write( "
Algebra.Com's Answer #187823 by Alan3354(69443)\"\" \"About 
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The easiest and quickest way is to see if the square of the longest side is the sum of the squares of the other 2 sides.
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\n" ); document.write( "9^2 + 40^2 =? 41^2
\n" ); document.write( "It is equal, so it's a right triangle.
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