Westonci.ca connects you with experts who provide insightful answers to your questions. Join us today and start learning! Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

The length of Marshall's poster is 2 times its width. If the perimeter is 72 inches, what is the area of the poster?

Sagot :

Let's say that the sides of the poster are a and b. We know that the perimeter is 2a + 2b. We know that one side is 2 times width of the other side. So we can write it all as:

72 = 2a + 2 * 2a
72 = 2a + 4a
72 = 6a                / ÷ 6 (both sides)
a = 12

So one side is 12, the other one is 2 * 12 = 24 [inches]. It means that the area of the poster is 12 * 24 = 288 [square inches).