Vertical line q goes through plane H in the center at point X. Line t comes out of point X. Lines r and s are parallel and are at a right angle to line q. Line p goes through lines r and s.

3 lines are shown. One line has points B, A, and E. Line C, A, F intersects that line at point A. A line comes out of point A and goes through point D.





Which is the definition of a line segment?
Which pair of undefined terms is used to define the term parallel lines?
Which is a property of an angle?
Which pair of undefined terms is used to define a ray?
Which is the definition of a ray?
Which figure represents an undefined term?




The definition of a circle uses the undefined term _______.
Which undefined term is used to define an angle?
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