### Home > MC2 > Chapter 9 > Lesson 9.2.2 > Problem 9-51

9-51.

The area of a rectangle is ^{2}. If the length and width each grow four times longer, what will the new area be?

Make an example of a rectangle with an area of ^{2}.

Since the area of a rectangle is (base)(height), which two numbers multiplied together gives

Multiply base and height by

Now find the area of the larger rectangle by multiplying the new base and the new height.