If it's not 90 degrees, then they're not perpendicular.
Yes. That's one definition of "perpendicular".
Yes.
draw two intersecting lines that are not perpendicular
Yes, that is the definition of perpendicular. 2 lines intersecting to form a right(90o) angle.
Intersecting lines may or may not be perpendicular. If the angle of intersection between two intersecting lines is 90 degrees, then the two lines are perpendicular. Otherwise, the lines are not perpendicular. For example: A | | | B ----|----- | | Here, the lines A and B are intersecting. The angle between A and B is 90 degrees. Therefore, line A and line B are perpendicular to each other.
If it's not 90 degrees, then they're not perpendicular.
Yes. That's one definition of "perpendicular".
90 degrees.
Yes.
draw two intersecting lines that are not perpendicular
Yes, that is the definition of perpendicular. 2 lines intersecting to form a right(90o) angle.
Non-perpendicular intersecting lines. There is no special name.
yes 90 degrees
Is this a trick question? "Perpendicular" means at right angles = at 90 degrees!
If the angle formed between the intersecting lines are 90o then the two lines are perpendicular. In 2D coordinate geometry, a perpendicular line has a slope equal to the negative reciprocal of the original line.
Perpendicular lines intersect at right angles. (90°) Therefore, by the definition of perpendicularity, two perpendicular lines must intersect.