Question 407418
"If the measure of an angle is equal to that of its supplement" then this means that {{{x+y=180}}} and {{{x=y}}}. So basically {{{x+x=180}}}



{{{x+x=180}}}



{{{2x=180}}}



{{{x=90}}}



So the measure of each angle is 90 degrees (ie they're both right angles)



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