Question -
Answer -
The angles of a quadrilateral are 3x, 5x, 9x and 13xrespectively.
We know, sum of all interior angles of a quadrilateral = 3600
Therefore, 3x + 5x + 9x + 13x = 3600
30x = 3600
or x = 120
Hence, angles measures are
3x = 3(12) = 360
5x = 5(12) = 600
9x = 9(12) = 1080
13x = 13(12) = 1560