Infinitely many.
A Star has 0 perpendicular lines!
9 perpendicular lines
There can be up to 8 perpendicular lines.
0 perpendicular lines. There are no 90 degree angles within a hexagon. Perpendicular lines meet at a right angle and sometimes they intersect.
None but its diagonals are perpendicular lines intersecting each other at right angles.
no because perpendicular lines meet and form a right angle and as a cylinder is round, it can't. the only perpendicular line you can make on a cylinder is a line that starts at one end or the other and is perpendicular to the end of the cylinder and therefore runs along the entirety of the side
Octagons have no perpendicular lines.
An octahedron has 7 perpendicular lines.
There are four perpendicular lines in a rectangle
A cylinder itself is not described as "perpendicular" because that term refers to the relationship between two lines or planes. However, the axis of a cylinder can be perpendicular to its base. In a right circular cylinder, the axis is perpendicular to the circular bases, meaning the sides of the cylinder rise straight up from the bases at a 90-degree angle.
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.
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.