Question

Cristian put a large rock on the bottom of the terrarium he made for his pet turtle. The rock is a right rectangular prism 10cm wide by 12 cm long. The rock displaces 1800cm cubed of water.

How high is the rock?

Answer 1

(Don't report the other guy, he needs points and I'll give you the answer)

The rock displaces 1800cm cubed of water -> The volume of it is 1800cm3

To calculate the volume of a right rectangular prism, we take width x length x height.

=> 10 x 12 x height = 1800

So, the height of the rock is 1800 : 120 = 15.