document.write( "Question 1134281: A rectangle has a perimeter of 34cm. One of its diagonals is 13cm. Find its sides. \n" ); document.write( "
Algebra.Com's Answer #751635 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Note that a formal algebraic solution is good exercise; but if the speed of solution is important and formal algebra is not required (as, for example, in a competitive math examination), this problem can be solved very quickly.

\n" ); document.write( "The length and width of the rectangle and the diagonal form a right triangle; and lengths of both the diagonal and the perimeter are integers. That means the three lengths of the sides of the triangle form a Pythagorean Triple.

\n" ); document.write( "A Pythagorean Triple with hypotenuse 13 is 5-12-13; if the side lengths are 5 and 12, then the perimeter is 2(5+12) = 34, as required.

\n" ); document.write( "So the side lengths are 5 and 12.
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