Trigonometrymedium · Past Paper
A TV tower stands vertically on a bank of a canal. From a point 20 m away from the bank, the angle of elevation is 30°. From the bank, it is 60°. Find the canal width.
A10 m
B20 m
C10√3 m
D30 m
✓ Correct Answer: A — 10 m
h = x√3 = (x+20)/√3. 3x = x+20 => x=10. Width = 10 m.
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