Respuesta :

mhanifa

Answer:

  • 42,6°

Step-by-step explanation:

We need to find the angle of the right triangle opposite to the vertical leg of 13.8 ft.

Hypotenuse is 15 ft.

Use tangent to find the required angle measure:

  • tan x = 13.8 / 15
  • tan x = 0.92
  • x = arctan 0.92
  • x = 42,6°
  • Perpendicular=P=13.8
  • Hypotenuse=H=15ft

So use sine

  • sinØ=P/H
  • sinØ=13.8/15
  • sinØ=0.92
  • Ø=sin^{-1}(0.92)
  • Ø=66.9°
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