Respuesta :

Answer:

  62 inches

Step-by-step explanation:

The side opposite the angle is given, and the length of the side adjacent to the angle is asked for. The appropriate trig relation is ...

  Tan = Opposite/Adjacent

  tan(11°) = (12 in)/(base length)

Solving for base length gives ...

  base length = (12 in)/tan(11°) ≈ 61.73 in

The base of the ramp is about 62 inches long.