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An observer standing on the deck of a ship just sees the top of a lighthouse. The top of the lighthouse is 40m above the sea level and the height of the observer's eye is 5m above the sea level. The distance (in km. up to one decimal place) of the observer from the lighthouse is33 |
Answer» An observer standing on the deck of a ship just sees the top of a lighthouse. The top of the lighthouse is 40m above the sea level and the height of the observer's eye is 5m above the sea level. The distance (in km. up to one decimal place) of the observer from the lighthouse is
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