Respuesta :

Answer:

Draw the picture.

You have a right triangle with sides 35 and 20 ft.

The 35 is opposite the angle of elevation; the 20

is adjacent to the angle of elevation.

arctan(35/20)= 60.25 degrees or 1.05 radians

Step-by-step explanation:

Answer:

  58.2°

Step-by-step explanation:

The mast and shadow are assumed to be the legs of a right triangle with the mast opposite the angle of interest. Then the tangent relation is useful for finding the angle:

  Tan = Opposite/Adjacent

  tan(angle of elevation) = (mast height)/(shadow length)

  angle of elevation = arctan((mast height)/(shadow length)) = arctan(50/31)

  angle of elevation ≈ 58.2°