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.
Not sure what a dimond is but a diamond has no perpendicular lines.
Two lines that intersect will create2 pairs of equal angles and if the lines are perpendicular the angles created will be right angles
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.
Not sure what a dimond is but a diamond has no perpendicular 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.
2
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.