document.write( "Question 1133574: In the diagram, quadrilateral JKLM is a parallelogram. Which statement proves parallelogram JKLM is a rectangle?
\n" ); document.write( "A. the midpoint of JL and KM is (1,1)
\n" ); document.write( "B. the slope of JM and KL is 0
\n" ); document.write( "C. JL=KM=radical 52
\n" ); document.write( "D. JK=LM=12\r
\n" ); document.write( "\n" ); document.write( "The coordinates are: J(-2,3) K(4,3) M(-2,-1) L(4,-1) and N(1,1)-midpoint
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Algebra.Com's Answer #750842 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
one of the properties of a rectangle is that the diagonals are congruent.\r
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\n" ); document.write( "\n" ); document.write( "selection C is the right choice because one of the properties of a rectangle is that the diagonals are congruent.\r
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\n" ); document.write( "\n" ); document.write( "if you calculate the length of JL and KM, you will find that their length are each equal to square root of 52.\r
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\n" ); document.write( "\n" ); document.write( "this makes them congruent which makes the figure a rectangle.\r
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\n" ); document.write( "\n" ); document.write( "here's a reference that includes properties of a rectangle.\r
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\n" ); document.write( "\n" ); document.write( "https://mathbitsnotebook.com/Geometry/Quadrilaterals/QDproperties.html
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