Question 257630
the glass box is 7*12*18 cm


when placed on 7 * 12 side, volume of the water is 7 * 12 * 15 = 1260 cubic cm.


when placed on 7 * 18 side, the volume of the water is still 1260 cubic cm.


let x = the height.


you get:


l * w * h = volume which becomes:


7 * 18 * x = 1260


solve for x to get x = 1260/(7*18) = 10 inches high.


that's your answer.