Answer:
SA = 18.2+10.4h
59.8yd²
Step-by-step explanation:
Surface area of a 3D shape is the sum of the areas of its faces. A rectangular prism is made of 2 rectangles that make the top and bottom, plus four equal, larger rectangles.
surface area = 2(small rectangles)+4(large rectangles)
surface area = 2(3.5*2.6)+4(2.6h)
SA = 18.2+10.4h
SA = 18.2+10.4h
SA = 18.2+10.4(4)
SA = 18.2+41.6
SA = 59.8yd²
