Each of the eight line segments is perpendicular to 2 line segments. So there are 8 pair in all.
4
2
It is possible for all nine lines to be perpendicular to at least one other line.
A cuboid has 6 faces, 12 edges and 8 vertices which all meet at right angles.
how many sets of parallel lines are in a triangle
4
2
In a regular octagon, there can be multiple sets of parallel lines. Specifically, each pair of opposite sides of the octagon is parallel to each other. Since an octagon has 8 sides, there are 4 pairs of parallel lines, resulting in a total of 4 distinct sets of parallel lines.
It is possible for all nine lines to be perpendicular to at least one other line.
A rhombic octagon. An ordinary regular octagon does have perpendicular sides. They do not meet in the outline of the octagon because they are alternate, but they are still perpendicular. However, in the same way that a rhombus is a distorted square, a rhombic octagon can have 4 pairs of parallel sides but no perpendicular ones.
it has 4.
A regular octagon has 4 sets of parallel sides.
4, one set at each corner.
A regular octagon.
There is only one set of perpendicular lines in a right triangle; the horizontal line and the vertical line that make it 90 degrees.
rhombus
An octagon had four pairs of parallel lines.