If three angles of a quadrilateral are 45° , 120° and 110° , then the fourth angle will be a) 360° b) 90° c) 85° d)140°
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Answer:
c)85°
Step-by-step explanation:
sum of all angles of a quadrilateral=360°
let the fourth angle be x
45°+120°+110°+x=360°
275°+x=360°
x=360°-275°
x=85°
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