### Home > CCG > Chapter 9 > Lesson 9.1.5 > Problem 9-57

9-57.

Elliot has a modern fish tank that is in the shape of an oblique prism, shown at right.

If the slant of the prism makes a

angle with the flat surface on which the prism is placed, find the volume of water the tank can hold. Assume that each base is a rectangle Use a special right triangle to find the height of the parallelogram.

Find the height of the parallelogram:

Find the volume:

If Elliot has

fish, how crowded are the fish? That is, what is the density of fish, measured in number of fish per cubic inch? What is the density of fish in Elliot’s tank in fish per cubic

*foot*?