Let the ratio be
- 3x:5x:9x:13x
The sum of angles of a 4 sided quadrilateral=360°.
Therefore ,
- 3x+5x+9x+13x =360°
- 30x=360°
- x=360/30
- =12°
Now ,
- 3x =3*12=36°
- 5x=5*12=60°
- 9x=9*12=108° and
- 13x=13*12=156°
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Written on Dec. 15, 2020, 10:53 a.m.