Question

A rectangular fish tank measures 26 cm by 20 cm by 18 cm. The tank is filled with water to a depth of 15. How many more mL of water will be needed to fill the tank to the top?

Answer 1

Assuming 18cm is the height (depth) then you have just 3cm more to fill to top.

volume = 26cm x 20cm x 3 cm = 1,560 cm cubed or 1,560 ml