Gujarat BoardEnglish MediumSTD 9MathsLines and Triangles2 Marks
Question
Find the measure of an angle which is: Equal to its supplement.
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Answer
Let the measure of the rquired angle be $x^\circ $.
Then, in case of supplementary angle: $x + x = 180^\circ $
$\Rightarrow 2x = 180^\circ $
$\Rightarrow x = 90^\circ $
Hence, measure of the angle that is equal to its supplement is $90^\circ .$
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