Question

intersecting lines that form a right angle are defined as ____. a. skew b. planes c. perpendicular d. parallel

Explanation:

Perpendicular lines are defined as intersecting lines that form a 90 - degree (right) angle. Skew lines are non - coplanar and do not intersect. Planes are flat surfaces. Parallel lines are lines that never intersect.

Answer:

C. perpendicular