AThat prism is composed of two similar triangles and 3 different rectangles. The area of a triangle is A = (baseheight)/2. The area of a rectangle is A = lengthwidth.
Surface area = 2[(1612)/2] + 3220 + 1232 + 1632 = 1728 cm^2
b. The surface area of a cone is A = piradiuslength
A = pi9*19 = 537 yd^2
