Find the perimeter of the area model. Write an addition sentence to represent the perimeter of the rectangle. Remember to include the sum. To find the perimeter, we need to add up the number of tiles along each side. So, we need to count the number of tiles. Let us do that. We will start here. One, two, three, four, five. There are five tiles on this side. Let us count the number at the bottom. One, two, three, four, five, six, seven. There are seven tiles at the bottom. Let us count the number of tiles on the other side. One, two, three, four, five. Now, let us count the number at the top. One, two, three, four, five, six, seven. There are seven tiles at the top. Now, let us make an addition in it to find our perimeter. Seven plus seven plus five plus five equals twenty-four. So, our perimeter of this rectangle is twenty-four.