The angles of a quadrilateral are in A.P. and the greatest angle is 120 degree. Express the angles in radians.

• let angles be x,x+d,x+2d and x+3d as the largest angle is of 120 deg therefore x+3d=120 deg.....eq1 now also sum of interior angles of a quadrilateral is 360 deg so x+(x+d)+(x+2d)+(x+3d)=360 =>4x+6d=360....eq2 solving eq1 and eq2 we get x=x=60 deg and d= 20 deg so angles are 60,80,100,120...for converting it in radians multiply all angles by pi/180
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• pi/3, 4pi/9, 5pi/9, 2pi/3
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• HOw bhaiya ????
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