document.write( "Question 214429: Given: in ΔXYZ, ∠XYZ is a right angle.\r
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Algebra.Com's Answer #162000 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "The sum of the measures of the interior angles of any triangle is 180° A right angle measures 90°, so in any right triangle, the sum of the two acute angles must be 180° - 90° = 90°. The sum of the measures of two angles is 90° if and only if the two angles are complementary.\r
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