Answer:
Step-by-step explanation:

Answer:
You should probably be more specific as different schools have different curriculum's!
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
You would use the tangent first, because the opposite of 40 would be x and the adjacent would be 30ft
Your answer would be 64 in².
To find the surface area, you just need to find the area of each of the shapes shown and add them together.
We can find the area of one of the triangles by doing:
(base × height)/2
(6 × 4)/2 = 24/2 = 12
As there are 4 identical triangles, the area of all of them would be 12 × 4 = 48 in².
Now we need to find the area of the square in the middle, which would be 4 × 4 = 16 in².
Adding these together gives us 16 + 48 = 64 in²
I hope this helps!