Trigonometrymedium · Past Paper
A 1.2 m tall girl spots a balloon moving horizontally at a height of 88.2 m. The angle of elevation changes from 60° to 30°. Find the distance traveled by the balloon.
A58√3 m
B50√3 m
C60 m
D100 m
✓ Correct Answer: A — 58√3 m
Net height = 87 m. d = 87/tan 30 - 87/tan 60 = 87√3 - 87/√3 = 174/√3 = 58√3 m.
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