Trigonometryhard · Past Paper
Shadow of tower is 30m when elevation is 30°. When elevation is 60°, shadow is:
A10 m
B15 m
C10√3 m
D90 m
✓ Correct Answer: A — 10 m
h = 30 tan 30 = 10√3. New shadow = h / tan 60 = 10√3 / √3 = 10 m.
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✓ Correct Answer: A — 10 m
h = 30 tan 30 = 10√3. New shadow = h / tan 60 = 10√3 / √3 = 10 m.
Share this question