no it does not
no it does not
Yes, if it is an equiangular or equiangular and equilateral parallelogram (rectangle or square).
2
100
no it does not
no it does not
A parallelogram has 2 pairs of parallel lines and in the form of a rectangle it has 2 pairs of parallel lines and 4 perpendicular lines that meet at each of its corners at right angles.
In a parallelogram, there are two pairs of opposite sides that are parallel to each other. Since parallel lines do not intersect, there are no perpendicular lines within the parallelogram itself. However, if you consider the diagonals of a parallelogram, they are perpendicular to each other, intersecting at right angles. Therefore, there are two perpendicular lines in a parallelogram when you consider its diagonals.
They are what makes it a rectangle. The rectangle is a special kind of parallelogram. The perpendicular lines cause it to be called a rectangle.
Yes, if it is an equiangular or equiangular and equilateral parallelogram (rectangle or square).
2
100
The single altitude of a parallelogram is its perpendicular height
None normally
Octagons have no perpendicular lines.
An octahedron has 7 perpendicular lines.