Yes
It can have one or two.
It has parallel sides, but not perpendicular.
Mutually perpendicular, adjacent sides.Mutually perpendicular, adjacent sides.Mutually perpendicular, adjacent sides.Mutually perpendicular, adjacent sides.
Parallel sides do not intersect. Perpendicular sides intersect at a right angle.
A regular pentagon has zero perpendicular sides. If it is irregular, it could have as many as 2 or 4 perpendicular sides.
It can have one or two.
Square & Rectangle are the only two. Rhombus (diamond) & parallelogram have adjacent sides, but no 90 degree angles (not perpendicular).
Diamonds come in all shapes and sizes, which determine the number of perpendicular lines (assuming you are referring to the edges as the lines) so there is no one number of lines or perpendicular lines on a diamond.
It has parallel sides, but not perpendicular.
Mutually perpendicular, adjacent sides.Mutually perpendicular, adjacent sides.Mutually perpendicular, adjacent sides.Mutually perpendicular, adjacent sides.
Adjacent sides are perpendicular. Opposite sides are parallel.
shape no pairs of perpendicular sides
No sides perpendicular means no right angles. A rhombus is a quadrilateral with no right angles so no sides perpendicular.
The question contradicts itself. A dodecagon need not have any perpendicular sides.
No. a equilateral triangle does not have perpendicular sides.
A rectangle always has perpendicular sides.
No. a equilateral triangle does not have perpendicular sides.