there is 15 perpendicular lines in a cube
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Perpendicular lines are lines that cross at right angles. Intersecting lines can cross at any angle.
Some intersecting lines are perpendicular lines.Take any old pair of intersecting lines. If the angles at the intersectionhappen to be 90 degree angles, then the lines are perpendicular lines.
Any polygonal shape, other than a triangle can have perpendicular lines.
Perpendicular lines are specific kinds of intersecting lines. They both cross paths. Intersecting lines can cross paths in any way, but perpendicular lines have to cross at right angles.
No.