The angles of a quadrilateral are x°, (x-10)°, (x+ 30)° and 2x°.Then the value of the greatest angle is degrees.
The correct option is A 136
We know that the sum of all angles in a quadrilateral is 360∘.
The angles are 68∘,68∘−10∘,68∘+30∘,2×68∘
∴ Greatest angle =136∘