For this case we have to define trigonometric relations of rectangular triangles that:
- The cosine of an angle is given by the leg adjacent to the angle on the hypotenuse of the triangle.
- The sine of an angle is given by the leg opposite the angle on the hypotenuse of the triangle.
Then, according to the figure we have:

Answer:

Option D
-square root 3 over 3
hope this helps.
I think x=24 but not sure
The answer is 1100 centimeters.
Surface area = 6 x 10^2
6 x 10^2
6 x 100
600m^2