Question

intersecting lines that form a right angle are defined as ____.

a. perpendicular
b. planes
c. skew
d. parallel

Explanation:

• Perpendicular lines are defined as intersecting lines that form a right angle.
• Planes are flat two - dimensional surfaces.
• Skew lines are non - intersecting and non - parallel lines in 3 - D space.
• Parallel lines are non - intersecting lines.

Answer:

A. perpendicular