1. An angle is (2/3)rd of its supplementary angle. What is the measure of the angle?
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By: anil on 05 May 2019 02.15 am
Let the supplementary angle = $$ heta$$ Required angle = $$(frac{2}{3} heta)$$ Sum of an angle and its supplementary angle = 180° => $$ heta + (frac{2}{3} heta) = 180$$° => $$frac{5}{3} heta = 180$$° => $$ heta = frac{180 imes 3}{5} = 108$$° $$ herefore$$ Measure of the angle = $$frac{2}{3} imes 108 = 72$$° => Ans - (B)
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