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1. |
If h and h1 are the heights of a light house and the observer in a ship in metres above M S L then the horizontal distance from the ship to the light house in kilometres is |
A. | 3.86 (h + h1) |
B. | 3.86 (h - h1) |
C. | 3.86 (h x h1) |
D. | 3.86 π (h + h1) |
Answer» B. 3.86 (h - h1) | |