document.write( "Question 29064: There is a rectangular box that has two right triangles in it. It is given that segmant AB is congruent to segmant CD, and segmant AB is perpendicular to segmant CD. I need to prove that triangle ABC is congruent to triangle CDA. \n" ); document.write( "
Algebra.Com's Answer #328322 by cleomenius(959)\"\" \"About 
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I am going to assume you stated the problem incorrectly and meant to state as a given segment AB is parallel to segment CD.\r
\n" ); document.write( "\n" ); document.write( "angle A and angle D are right angles, angles of a rectangle are 90 degrees.
\n" ); document.write( "Side AB is Congruent to side CD given
\n" ); document.write( "Diagonal BC is congruent to diagonal AD. Thereom, the diagonals of rectangle are congruent.
\n" ); document.write( "Triangle ABC is congruent to triangle CDA. Hypotenuse Leg theorem.
\n" ); document.write( "Cleomenius.
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