Question

What are Contour lines?​

Answer 1

Answer:

contours lines are imaginary lines that shows both the natural as well as man made features.

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Answer 2

Answer:

A contour line 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. It is a plane section of the three-dimensional graph of the function f parallel to the-plane.