1.

The angles of quadrilateral are in `AP` whose common difference is `10^@` then find the angles.

Answer» Correct Answer - `75^(@), 85^(@), 95^(@), 105^(@)`
Hint: Let these angles be `x^(@), (x+ 10)^(@), (x+20)^(@)` and `(x+30)^(@)`.


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