The figure shows a container ³₄ filled with water. The container is made up of two cuboids. The top cuboid has a square base of length 27 cm and height of 26 cm. The bottom cuboid has a square base of length 9 cm and height 18 cm. Find the height of the water level from the base of the container.
Volume of the top cuboid
= 27 x 27 x 26
= 18954 cm³ 

Volume of the bottom cuboid
= 9 x 9 x 18
= 1458 cm³ 

Total volume
= 18954 + 1458
= 20412 cm³ 

1 container = 20412 cm^3 
3₄ container = 20412 x ³₄ = 15309 cm³ 

Volume of water in the top cuboid
= 15309 - 1458
= 13851 cm³ 

Base Area of the top cuboid
= 27 x 27
= 729 cm² 

Height of water in the top cuboid
= 13851 ÷ 729
= 19 cm

Height of water from base
= 19 + 18
= 37 cm

Answer(s): 37 cm