Answer:
h = 24 cm
Explanation:
volume of water in the cylinder = volume of water in the rectangular base container
But ,
volume of cylinder = 

 h
h
where: is the radius and h is the height.
volume of cuboid = length x width x height
 = l x w x h
So that;

 h = l x w x h
h = l x w x h
But, r = 
 =
 = 
 = 9 cm, height of cylinder = 28 cm, length = 27 cm, width = 11 cm,
 = 9 cm, height of cylinder = 28 cm, length = 27 cm, width = 11 cm, 
 =
 = 
 .
.
Thus,
 x
 x 
 x 28 = 27 x 11 x h
 x 28 = 27 x 11 x h
 x 81 x 28 = 27 x 11 x h
 x 81 x 28 = 27 x 11 x h
7128 = 297h
h = 

 = 24
h = 24 cm
The depth of the water in the container is 24 cm.