document.write( "Question 395536: Given: in ΔXYZ, ∠XYZ is a right angle.\r
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Algebra.Com's Answer #280698 by richard1234(7193)\"\" \"About 
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∠XYZ + ∠YXZ + ∠YZX = 180 degrees. Since ∠XYZ = 90,\r
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\n" ); document.write( "\n" ); document.write( "90 + ∠YXZ + ∠YZX = 180\r
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\n" ); document.write( "\n" ); document.write( "∠YXZ + ∠YZX = 90\r
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\n" ); document.write( "\n" ); document.write( "Hence they're complementary.
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