Answer:
106
Explanation:
The net is split up into 5 shapes. The triangles on the top and bottom have an area of 3*5/2 or 7.5. The rectangle in the middle has an area of 3*7 = 21. The outer rectangles have an area of 5*7 = 35. Adding all of this up, we get 2*7.5 + 21 + 2*35 = 15 + 21 + 70 = 106.