the angles of a quadrilateral are in AP whose common difference is 10degree.find the angles.

Asked by riyaliz | 22nd Jul, 2008, 10:36: PM

Expert Answer:

 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

 

 

Answered by  | 23rd Jul, 2008, 03:57: PM

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