Q. 14.5( 483 Votes )

The angles of quadrilateral are in the ratio 3: 5: 9: 13. Find all the angles of the quadrilateral.

Answer :

Let the common ratio between the angles be x. Therefore, the angles will be 3x, 5x, 9x, and 13x respectively

As the sum of all interior angles of a quadrilateral is 3600,


3x + 5x + 9x + 13x = 3600


30x = 3600 


x = 120


Hence, the angles are


3x = 3 × 12 = 360
5x = 5 × 12 = 600

9x = 9 × 12 = 1080
13x = 13 × 12 = 1560

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