Answers

  • Brainly User
2016-01-13T01:43:27+08:00
Sin θ = opposite / hypotenuse

Let x be the length of the ladder (hypotenuse)
Angle of elevation = 60°
Distance of the window from the ground (height) = 15 m

sin 60° = 15 / x
x = 15 / sin 60°
x = 15 / 0.866
x = 17.32  

ANSWER: The ladder must be 17.32 or 17 m.
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