Contours can intersect if you have an overhang. If there is a vertical drop, the contours will touch but not cross one another.
Lines that intersect at right angles.
Tangent to the curve.
Two straight lines that don't touch or intersect no matter how far they are extended
They can be as long as the don't intersect or touch at any point.
Contours can intersect if you have an overhang. If there is a vertical drop, the contours will touch but not cross one another.
Lines that intersect at right angles.
two lines that never intersect or touch.
No. By definition, lines that are parallel never intersect.
intersecting lines are alike because perpendicular lines have to intersect to be perpendicular. 2: They are the same because they touch another line so they are the same.
two lines that never intersect or touch.
parallel lines are any lines that will never touch. on a 3D plane, there will be many lines that won't intersect another. but parallel lines have a specific definition that there is no way to subcatigorize it
Tangent to the curve.
Two straight lines that don't touch or intersect no matter how far they are extended
Skew lines in 3 dimensional geometry, do not lie in the same plane, and will not intersect. Think of an overpass 'crossing' a freeway. From an aerial view they appear to intersect, but one is above the other (in different planes). They do not touch each other.
Parallel lines NEVER touch, so zero.
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