Answer: 15cm
Step by step:
the volume of the rectangular solid is 28*11*10 = 3080 cm^3. To find the height of water risen, we use the volume of cylinder equation 1/3*pi*r^2*height and use the total as the volume of rectangular solid.
So 1/3*pi*14^2*height = 3080
use algebra to find height. it will be 15cm.