The distance to the horizon, d kilometres, is related to the height above mean sea level, h metres, by the approximate formula: d = 3.57*sqrt(h).
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Horizontal means going left and right. This is the opposite of vertical, which means going up and down. Example: This sentence is written horizontally. It might help to know that the horizon is the farthest limit of the earth that can be seen from a given point. When you are at a beach looking out over the ocean or another body of water where you cannot see land in the distance, the line where the sky meets the water is called the horizon.
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No, vertical is up and down and horizontal is across. Think about how a HORIZON goes ACROSS the ocean...so HORIZONtal is across.
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