# Word Problem Involving the Volume of a Rectangular Prism

In this lesson we solve word problems involving the volume of a rectangular prism.

Sarah has a chocolate box whose length is 12 cm, height 9 cm, and width 6 cm. Find the volume of the box.

### Solution

**Step 1:**

The given box has length = 12 cm; width = 6 cm; height = 9 cm.

**Step 2:**

The volume of box V = l × w × h = 12 × 6 × 9

= 648 cubic cm

A water tank is 90 m long and 60 m wide. What is the volume of the water in the tank, if the depth of water is 40 m?

### Solution

**Step 1:**

The given tank has length = 90 m; width = 60 m; height = 40 m.

**Step 2:**

The volume of water tank V = l × w × h = 90 × 60 × 40

= 216000 cubic m.