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Home > MC2 > Chapter 3 > Lesson 3.1.2 > Problem 3-20

3-20.

The perimeter is the sum of all the sides.
What is the value of each side?

Now, add up all the sides to find the perimeter.
x + 1 + x + 1 + 1 + 1 + x + x

Each side piece has been labeled.

Simplify, and you get 4x + 4.

Refer to part (a).

Each side piece has been labeled.