Question

Find the surface area of the net below.

Answer 1

Explanation:

Area of 4 triangles = 1/2 x base x height

`=4 * (1)/(2) * 7 * 5 \\ = 2 * 7 * 5 \\ = 14 * 5 \\ = 70 {m}^(2)`

Area of middle square = Length x Width

`= 7 * 7 \\ = 49 {m}^(2)`

Surface Area = Area of 4 triangles + Area of middle square =

`70 + 49 \\ = 139 {m}^(2)`