The top is 1 unit.The bottom is 9 units.Use the distance formula to find the length of the side.Give the end points coordinates(2,2) and (6,5) Length = β((6-2)^2 +(5-2)^2) = 5 units.The total perimeter is the top + the bottom + 2 sides. Perimeter = 1 + 9 + 5 + 5 = 20 units.