CPM Homework Help : CC3MN Problem 1-22

The area of a rectangle is $24,396$ square centimeters. If the width is $38$ centimeters, what is the length? How do you know?

Step 1:

The formula for the area of a rectangle is at right.

Step 2:

Fill in the known values.

Step 3:

Solve.

Answer:

$642$ cm = Length

$\text{Area} = \text{Length} \cdot \text{Width}$

$24,396\ \text{cm}^2\ =\ \text{Length} \cdot \ 38\ \text{cm}$