A trapezium has no right angles therefore there are no perpendicular lines. If it had perpendicular lines, it would be a square or rectangle.
A 9 sided nonagon normally has no perpendicular lines that meet at right angles
Perpendicular lines meet at 90 degrees
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Not sure what a dimond is but a diamond has no perpendicular lines.
The cut of a diamond may contain perpendicular lines. The mineral diamond may also have natural perpendicular lines in the lattice, and these are not visible in gem-stone quality diamonds.
Octagons have no perpendicular lines.
An octahedron has 7 perpendicular lines.
There are four perpendicular lines in a rectangle
Each of the four lines is perpendicular - to two of the other lines.
A trapezium has no right angles therefore there are no perpendicular lines. If it had perpendicular lines, it would be a square or rectangle.
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9 perpendicular lines
A Star has 0 perpendicular lines!
Including its diagonals there are 6 perpendicular lines
A trapezoid has 2 parallel lines. It may or may not have perpendicular lines.