Each contour line represents a different elevation. If they touched at any point, that would mean that point would have 2 different elevations at once, which doesn't make any sense. They can get really close if there is a steep drop, but they never touch.
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They can never cross but they converge as the represented ground steepens, so they touch in appearance on paper when representing a vertical face of height at least equal to the difference between two consecutive lines.
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A line intersect is a point on a line where another line or object crosses the line.
Perpendicular lines are where a line crosses another line and forms 4 right angles on all 4 sides but a intersecting line only crosses another line
because the world would explode
lower.
straight line
When a contour line crosses a river or stream, they make a "V" shape and points to the direction the river is flowing.
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The size in the change of elevation from one contour line to another is called the contour interval. It represents the vertical distance between each contour line on a topographic map. The contour interval helps in understanding the slope and elevation changes of the terrain being represented.
A perpindicular line is when a line crosses another line. Simple as that :)
A line intersect is a point on a line where another line or object crosses the line.
The main topographic map rules include contour lines never crossing, contour lines close together represent steep terrain, contour lines spread out represent flat terrain, and elevation is indicated by the contour lines.
The Asymptote
Perpendicular lines are where a line crosses another line and forms 4 right angles on all 4 sides but a intersecting line only crosses another line
It means the slope is steeper
it is a contour line of elevation Control index contour, or just index contour
create a sentence for contour line