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Question
The point A is on a mountain which is 5700 metres above sea level and the point B is in a mine which is 39600 metres below sea level. Find the vertical distance between A and B.
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Solution
Let us consider the height above the sea level as positive and that below the sea level as negative.
∴ Height of point A from sea level = 5700 m
Depth of point B from sea level = -39600 m
Vertical distance between A and B = Distance of point A from sea level - Distance of point B from sea level
= 5700 - (-39600)
= 45300 m
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