document.write( "Question 508883: Given: <3 and <2 are complementary; m<1 + m<2 = 90 degrees\r
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Algebra.Com's Answer #341155 by swincher4391(1107)\"\" \"About 
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Proof:\r
\n" ); document.write( "\n" ); document.write( "By definition, if m<2 and m<3 are complementary, then m<2 + m<3 = 90. Also since we are given m<1 + m<2 = 90, then it follows that m<1 + m<2 = m<2 + m<3. Then if we subtract m<2 from both sides we are given our desired result m<1 = m<3. Hence m<1 and m<3 are congruent.\r
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