Question

write about contour lines​

Answer 1

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❤. A line on a map joining points of equal height above or below the sea level

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Answer 2

Answer:

A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value so that the curve joins points of equal value.[1][2] It is a plane section of the three-dimensional graph of the function f(x, y) parallel to the x, y plane. In cartography, a contour line (often just called a "contour") joins points of equal elevation(height) above a given level, such as mean sea level.

Explanation:

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