twelve
There are 12 edges in a cube.
A heptagon can have all 7 lines that are perpendicular to one or both its neighbours.
4
No. Perpendicular lines for right angles. That is why they are called perpendicular.
2
24
there is 15 perpendicular lines in a cube
I believe they do, and they have 2 perpendicular lines.
twelve
Yes.
Octagons have no perpendicular lines.
An octahedron has 7 perpendicular lines.
There are four perpendicular lines in a rectangle
There are 12 edges in a cube.
Each of the four lines is perpendicular - to two of the other lines.
Not sure what a dimond is but a diamond has no perpendicular lines.