Question -
Answer -
Angles of aquadrilateral are in the ratio 3 : 5 : 9 : 13 (Given)
Let the sides are 3x,5x, 9x, 13x
We know, sum of allthe angles of a quadrilateral = 360o
3x + 5x + 9x + 13x =360 o
30 x = 360 o
x = 12 o
Measure of smallestangle = 3x = 3(12) = 36o .