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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? |
90m 100m 110m 120m |
120m |
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 |
