Question

which is precisely defined using the undefined terms point and plane? circle line segment perpendicular lines ray

Explanation:

• A circle is defined as the set of all points in a plane that are at a given distance from a given point (the center). It uses the undefined terms point and plane.
• A line segment is defined using two points (endpoints), but not directly using the concept of a plane in its basic definition.
• Perpendicular lines are defined based on the angle (90 degrees) between two lines, not primarily using point and plane.
• A ray is defined using a point (endpoint) and a direction, not directly using the plane in its basic definition.

Answer:

circle