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A.P.

Asked by khushal305 3rd September 2009, 4:31 PM
Answered by Expert
Answer:

Let the angles be a-3d, a-d, a+d, a+3d.

Then,

(a+3d) = 2(a-3d)

a = 9d,

a-3d + a-d + a+d + a+3d = 360

4a = 360,

a = 90,

d = 90/9 = 10,

Hence the angles are, 60, 80, 100, 120.

Regards,

Team,

TopperLearning.

 

Answered by Expert 3rd September 2009, 11:53 PM
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