Question

which description is the best definition of perpendicular lines?
a lines that intersect at one point
b lines that intersect at right angles
c lines that intersect to create complementary angles
d lines that never intersect and always remain a constant distance apart

Explanation:

Perpendicular lines are defined as lines that intersect at right angles (90 - degree angles). Option A is incorrect because lines that intersect at one point could be at any angle. Option C is incorrect as creating complementary angles (sum to 90 degrees) is not the definition of perpendicular lines. Option D is the definition of parallel lines.

Answer:

B. lines that intersect at right angles