Question

please answer me in detail

Answer 1

Let the angles be 6x,5x,12x, and 13x so that their ratio comes as given in ques.

6x + 5x + 12x + 13x = 360° ( Angle sum Property of quad.)

36x = 360°

x = 10°

Greatest angle = 13x = 130°

Answer 2

here is your answer in detail.