The internal angles of quadrilateral are in A.P. and their common difference is `10^@`. Find them.

Explanation

Since the angles are in A.P.,

let the angles are `p, p+10, p+20, p+30`

sum of angles=360

`⇒ p + p+10 + p+20 + p+30 = 360`

`⇒ 4p + 60 = 360`

`⇒ 4p = 360-60 = 300`

`⇒ p = 300/4 = 75`


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