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

(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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