Question

The angles of a quadrilateral
are in AP whose common difference is 1o. find the
angles
​

Answer 1

let the angles of the quadrilateral be   X , X+10 . X+20 ,X+30

the sum of the angles of the quadrilateral = 360 degrees

 X+ X+ 10 + X+20 +X +30  = 360

====> 4X +60  = 360

==>4X = 360 - 60 = 300

====> X = 75

The angles of the quadrilateral are  75,  85,  95,  105 degrees