Question

Three angle of quadrilateral are 60°,85°and 130°. find the measure of the fourth angle.​

Answer 1

Given :-

Three angles of quadrilateral 60° , 85° ,135° ,

• let, the fourth angle be, x
• x = 360°-(130°+85°+60°)
• x =360°- 275°
• x = 85°

Reason:- Sum of all angles of a quadrilateral is 360°

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