### Home > MC2 > Chapter 5 > Lesson 5.3.2 > Problem5-103

5-103.

Look at the algebra tile shape below.

1. Write an algebraic expression for the perimeter of the shape in two ways, first by finding the length of each of the sides and adding them all together and then by writing an equivalent, simplified expression.

Label all the side lengths.

$x + x + x − 2 + 1 + 1 + x − 1 + 1 + x + x$ Simplify this expression.

2. Write an algebraic expression for the area of the shape.

To find the area, add up the values of all the tiles within the perimeter.