Question

what is the meaning of 3r in the grid square 7895​

Answer 1

Answer:

3r - the relative depth of perennial lined well in 3 metres ●3r

Explanation:

This height is not taken from sea level but with respect to the surrounding area. It may be the height of a dam, bridge, sand dune or it can be the depth of a well, tank, hill or river canal, for example , 3r,5r,7r,etc.

Answer 2

It means depth of well.

• Although the image is not given in the question for grid, there is a general parlance for certain terms by which we ca interpret their meaning.
• r in topography shows the relative depth or height.
• 3r denotes that the peninsular well's or the sand dune's relative height is 3 metres, respectively.
• This height is calculated relative to the surroundings rather than from sea level. For example, 3r, 5r, 7r, etc., it may be the height of a dam, bridge, sand dune, or it could be the depth of a well, tank, hill, or river canal.
• This is why it called relative depth or height and not general height above sea level.

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