A regular pentagon has zero perpendicular sides. If it is irregular, it could have as many as 2 or 4 perpendicular sides.
There are no perpendicular lines in a regular octagon. Perpendicular lines are found in squares and rectangles, where the angles are 90 degree angles. Regular octagons, unlike squares, have so many sides that the angles joining the sides cannot be as sharp as 90 degrees. Instead, the angles are much larger and the sides are much too wide apart to be anywhere near perpendicular. It is possible, however, to construct an irregular octagon having perpendicular lines.
2, the two smallest sides are perpendicular to eachother.
A right angle has one pair of perpendicular sides.
Not sure what a dimond is but a diamond has no perpendicular lines.
A regular pentagon has zero perpendicular sides. If it is irregular, it could have as many as 2 or 4 perpendicular sides.
5
A single side cannot be perpendicular on its own. Two sides are perpendicular if they intersect at a 90 degree angle. There are many polygons, both regular and irregular, that can have perpendicular sides.
There isn't really a good straight answer for that - if it's irregular, then it would completely depend on the hexagon...
An equilateral triangle doesn't have any perpendicular sides on it.
There are no perpendicular lines in a regular octagon. Perpendicular lines are found in squares and rectangles, where the angles are 90 degree angles. Regular octagons, unlike squares, have so many sides that the angles joining the sides cannot be as sharp as 90 degrees. Instead, the angles are much larger and the sides are much too wide apart to be anywhere near perpendicular. It is possible, however, to construct an irregular octagon having perpendicular lines.
A rhombus has no perpendicular sides but its diagonals are perpendicular to each other and meet at right angles.
7 be it regular or irregular
2, the two smallest sides are perpendicular to eachother.
A right angle has one pair of perpendicular sides.
5 sides
Not sure what a dimond is but a diamond has no perpendicular lines.