A balloon is flying at a height of 60√3 m. The thread attached to it is assumed to be stretched straight and makes an angle of 60° with the level ground. The length of the string is?
Answer & explanation
Correct answer: option 4
AC = length of string
θ = 60°
Now,
sin 60° = \(\frac{AB}{AC}\)
\(\frac{\sqrt {3}}{2}\) = \(\frac{60\sqrt {3}}{AC}\)
AC = 2 × (60) = 120m