Question

52.
The angles of a quadrilateral are in
the ratio 3 : 5 : 7 : 9. What is the
difference between the least and the
greatest angles of the quadrilateral ?
(1) 72°
(2) 90°
(3) 50°
(4) 60°​

Answer 1

Answer:

90

Step-by-step explanation:

let the angels be 3x,5x,7x,9x

so,

3x+5x+7x+9x=360

24x= 360

x=15

now,the greatest angle= 9x=9×15=135

and smallest angle=3x×15=45

now, the difference is=135-45=90