Three angles of a quadrilateral are 120 deg, 80 deg, 75 deg.Then the fourth angle is
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The Answer is 85 deg
Because, Sum of angles of a quadrilateral is 360 deg
Because, Sum of angles of a quadrilateral is 360 deg
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Sum of measures of all angles of a quadrilateral is 360degree.
A+B+C+D=360
120+80+75+D= 360
275+D=360
D=360-275
D=85degree
A+B+C+D=360
120+80+75+D= 360
275+D=360
D=360-275
D=85degree
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