To form 90 degrees or right angles.
It can, but it need not.
Yes. A t has a perpendicular line but in order to form a right angle you need to have the lines intersect.
Perpendicular lines meet at a right angle so a right angled triangle has two lines which are perpendicular to eachother. However there are no parallel lines in a right angled triangle, or any triangles for that matter.
It can, but need not.It can, but need not.It can, but need not.It can, but need not.
It need not have any.
= parallel + perpendicular As such no, perpendicular lines do not naturally have parallel lines. However...connect the lines in the symbols below. ++ ++ And you'll have 4 perpendicular lines, and 4 parallel lines.
Perpendicular lines intersect.
These lines are perpendicular: _|
perpendicular.
Lines that aren't perpendicular
PERPENDICULAR
menny = manyperellal = parallelpurpendiculer = perpendiculardose = doseNot good!A hexagon need not have any parallel or perpendicular lines.menny = manyperellal = parallelpurpendiculer = perpendiculardose = doseNot good!A hexagon need not have any parallel or perpendicular lines.menny = manyperellal = parallelpurpendiculer = perpendiculardose = doseNot good!A hexagon need not have any parallel or perpendicular lines.menny = manyperellal = parallelpurpendiculer = perpendiculardose = doseNot good!A hexagon need not have any parallel or perpendicular lines.