The perimeter of a polygon is the sum of its side lengths.
16 units
Practice makes perfect
To determine the perimeter of the polygon, we must find the sum of its side lengths. Before we do that, let's draw it in a coordinate plane.
We can see that the figure is a rectangle. This means that it has two pairs of congruent sides. Since all of the sides are either vertical or horizontal, we can find their lengths from the graph by checking the differences between coordinates.
Once we know the length and the width of the rectangle, we have everything we need to find the perimeter. Let's calculate the sum.
