Answer: 62 in
Explanation:
Surface area of a triangle: Bh/2
Surface area of a rectangle: Bh
Triangle: 3in(2in)/2 = 3in
Rectangle: 7in(2.5in) = 17.5in
Rectangle: 7in(3in) = 21in
Since there are 2 triangles, the surface area of the triangle will be multiplied by 2. The surface area of the first rectangle will be multiplied by 2 due to the 2 rectangles:
3in*2 = 6in
17.5in * 2 = 35in
To find the total surface area, add the two numbers together:
35in + 6in + 21in= 62in