alleryA 10√3 m vertical tower sees level-ground points on the same ray from its base at depressions 60°,30°. Gap?
A40 m
B20 m
C10 m
D30 m
Answer & Solution
Correct answer: B. 20 m
Their distances from the tower base are 10 m and 30 m, giving a 20 m gap.
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