document.write( "Question 1114227: In a right triangle ABC, CD is the angle bisector of the right angle C. Two lines
\n" ); document.write( "DF and DE are parallel to the legs of the triangle. Prove that DFCE is a square. \n" ); document.write( "

Algebra.Com's Answer #729214 by ikleyn(52873) $\"\"$ $\"About$

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\n" ); document.write( "You have rectangle DFCE with the diagonal which makes the angle of 45 degrees with the side.\r
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\n" ); document.write( "\n" ); document.write( "It is enough to conclude that DFCE is a square.\r
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