The image contains a table with geometric terms and their definitions. Here are the correct matches for the definitions provided:

1. Coplanar: "Belonging to the same plane."
2. Circle: "The set of all points in a plane that lie the same distance from a single point in the plane."
3. Collinear: "Belonging to the same line."
4. Line segment: "A part of a line consisting of two endpoints and all points between them."

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Here are 5 related questions for expanding this:

1. What is the difference between collinear and coplanar points?
2. How do you define parallel lines in geometry?
3. Can a line segment be extended to form a line?
4. What is the formal definition of perpendicular lines?
5. How is a radius related to the definition of a circle?

Tip: In geometry, understanding the relationship between lines, planes, and points is crucial for mastering spatial concepts.