# Lesson 15 Find Missing Side Lengths

• Let’s use the relationship between multiplication and division to solve problems.

## Warm-up Estimation Exploration: The Garden

What is the area of one of the large rectangles in the garden?

Record an estimate that is:

too low

too high

## Activity 1 Find the Missing Side Length, Part 1

Complete the table.

area
(square feet)

length
(feet)

width
(feet)

## Problem 1

Complete the table:

volume
(cubic feet)

base
(square feet)

height
(feet)

## Problem 2

Clare wants to find the height of a rectangular prism with the following measurements:

 volume (cubic feet) length(feet) width(feet) height(feet) $882$ $6$ $7$
1. First, Clare finds the quotient . What could she do next to find the height?

2. Find the missing height to finish the problem for Clare.

## Problem 3

Complete the table.

volume
(cubic feet)

length
(feet)

width
(feet)

height
(feet)

## Problem 1

The area of a rectangular field is 8,320 square yards. The width is 65 yards. How long is the field? Explain your reasoning.