Answer:
320cm^2
Step-by-step explanation:
Surface area is the sum of areas of each side of the shape:
Area of cross section x 2 = 1/2 x 8 x 2 x 15 = 8 x 15 = 240cm^2
Area of base = 15 x 2 = 30cm^2
Area of slope = 17 x 2 = 34cm^2
Area of back = 8 x 2 = 16cm^2.
Now, surface area of whole shape is the sum of these areas:
16+30+34+240 = 320cm^2
Hope this helps.
I hope you are well, too.
Good Luck with math.
Please mark brainiest
