document.write( "Question 476524: If two angles are supplementary and congruent, the measure of each angle is 90 degrees. True or false? \n" ); document.write( "
Algebra.Com's Answer #326711 by robertb(5830)\"\" \"About 
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True. Since they are supplementary, the angles should measure x and 180 - x.
\n" ); document.write( "Since they are congruent, x = 180 - x
\n" ); document.write( "==> 2x = 180 ==> x = 90.
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