Railway tracks, the opposite edges of a rule.
they need to look parallel
As far as we know, two lines can be perpendicular, or they can be parallel, but they can't be both.
Two or more lines that do not intersect and are not parallel.
Like this: _______________________________ _______________________________ _______________________________
These lines are perpendicular: _|
Yes, a trapezoid has two bases. They are the parallel lines on the top and bottom. Parallel lines look like this =
An octagon need not have any parallel sides. But it can have any number from 2 to 8 lines that are parallel - in pairs, triplets or quartets.
Take any two lines and look at their slopes. -- If the slopes are equal, then the lines are parallel. -- If the product of the slopes is -1, then the lines are perpendicular.
Just like this: ___________________ ____________________ parallel means they never intersect (touch)
kinda like this.... / \ / \ the lines on the top and bottom are parallel kinda like this.... / \ / \ the lines on the top and bottom are parallel
In order to describe parallel, you need 2 lines to be parallel to each other. The lines will lie in the same plane, and the right-angle distance between the 2 lines will be constant for the entire length of the lines. Since lines are infinite length in length, they will never intersect.