Trigonometryhard · Past Paper
If the elevation of sun changes from 30 to 60, the shadow of a tower decreases by 10 m. Height?
A5√3 m
B10√3 m
C15 m
D20 m
✓ Correct Answer: A — 5√3 m
h(√3 - 1/√3) = 10. h(2/√3) = 10 => h = 5√3 m.
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