Q. 84.3( 14 Votes )

Find the measure of an angle which 25°less than its supplement.

Answer :

(77.5)°


Let, measure of an angle = X


Supplement of X = 180° – X


According to question,


X = (180° – X) - 25°


X + X = 180° - 25°


2X = 155°


X = (77.5)°


Therefore measure of an angle = (77.5)°


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