Parallel lines are lines that never cross each other - they keep the same distance apart from each other. When two lines intersect, the opposite (X) angles are equal. On parallel lines ...

If two lines intersect each other, then the vertically opposite angles are equal. • If a transversal intersects two parallel lines, then (i) each pair of corresponding angles is equal ...

In it, a bunch of short hatch marks cross long parallel lines at an angle. That makes the longer lines look like they’re tilting toward and away from each other — even though they’re ...

the horizontal lines give the illusion of bending at an angle. However, that is not true. In reality, these lines are parallel and devoid of any actual curvature. An explanation of the optical ...