Question

Define: A. Parallel lines B. perpendicular lines C. radius of a circle

Answer 1

Two lines are parallel if the have the same slope.

Lines that are at right angles (90°) to each other.

radius can be a line from any point on the circumference to the center of the circle

Answer 2

Parallel lines are the pair of lines which are parallel to each other.

Perpendicular lines are a line on 90° perpendicular to a straight line.

Radius of a circle is the half of the diameter of a given circle.

See the attachment for more clearence. (Rough Diagram)

Hope the question is answered !!

Good Day !!