Use formulas to find the lateral area and surface area of the prism. A triangular prism has three rectangular sides of height 19 inches connecting two right triangular bases, one of which has a leg of length 15 inches and a hypotenuse of length 17 inches. 17 in. 15 in. 19 in. The lateral area of the prism is nothing insquared. (Round to the nearest whole number as needed.) The surface area of the prism is nothing insquared. (Round to the nearest whole number as needed.)