Question

1. Which one of the following statements is true of perpendicular lines?

A. They intersect to form an acute angle.
B. They intersect to form an obtuse angle.
C. They never intersect.
D. They intersect at one point.

Answer 1

They intersect at one point, perpendicular lines form right angles (90 degree angles)

Answer 2

only D is correct, it intersects at 90 degrees so it cant be obtuse or acute and never intersecting would be parallel lines