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Cards 1
If two lines are perpendicular, their product of slopes is 1.
Yes
No
Cards 2
Parallel lines never intersect.
Yes
No
Cards 3
The distance between two parallel lines is constant.
Yes
No
Cards 4
Perpendicular lines intersect at a 45-degree angle.
Yes
No
Cards 5
The gradient of parallel lines are always equal.
Yes
No