The total lateral surface area This is the area of the sides of the figure. In this case it will be the sum of the three rectangles. (13) * (14) + (13) * (14) + (14) * (10) = 504yd ^ 2 the total surface area. This is the surface area of the whole figure. In this case there are three rectangles and two triangles. (13) * (14) + (13) * (14) + (14) * (10) + (1/2) * (10) * (12) + (1/2) * (10) * (12 ) = 624 yd ^ 2 the answer is total lateral surface area: 504yd ^ 2 total surface area: 624 yd ^ 2