We have 6 triangles with base 10 and height 16. That means the area of each triangle is 10 * 16 / 2, which is 80 m^2.
The area of a hexagon is 3√3 * a^2 / 2. a is the side length, which is shown to be 10. So, 3√3 * 100 / 2 = 150√3 m^2 for the area of the hexagon. Rounded to the nearest whole number, it's 260 m^2.
If each triangle is 80 and there's 6 of them, total that's 480 m^2 for the triangles. Add the 260 and you get a surface area of 740 m^2.
