If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Lesson 1: Volume with unit cubes

# Volume of rectangular prisms with unit cubes

## Problem

Unit cube:
A cube has a visible front, right hand side, and top faces.
What is the volume of the rectangular prism?
Some of the cubes might be hidden behind other cubes. Try to visualize all of the cubes.
The front face of the rectangular prism has 9 cubes: 3 rows, 3 columns. The top face of the rectangular prism has 6 cubes: 2 rows, 3 columns. The right-hand side face of the rectangular prism has 6 cubes: 3 rows, 2 columns.
cubic units
Stuck?
Stuck?