if the angle of a quadrilateral are x,x+10,x+20,x+30 degree,find the value of each
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sum of all angle of a quadrilateral is always equal to 360 degree by angle sum property of a quadrilateral,
x + x+ 10 + x + 20 + x + 30 = 360°
4x + 60 = 360°
4x = 300°
x = 75°
Angle A = 75°
Angle B = 85°
Angle C = 95°
Angle D = 105°
x + x+ 10 + x + 20 + x + 30 = 360°
4x + 60 = 360°
4x = 300°
x = 75°
Angle A = 75°
Angle B = 85°
Angle C = 95°
Angle D = 105°
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