1. what is represented by the figure?
A.Half line
B.Line
C.Ray
D.Segment

2. R,S and T are 3 collinear points with statement is true?
A. S is between R and T and T is between S and R.
B. R is between S and T, and S is between T and R.
C. T is between R and S,and T is between S and R.
D.T is determined R and S, and R is between S and T.

3. what is determine when two planes intersect?
A.Line
B.Plane
C.Point
D.Ray

4. what do you call the union of two non-collinear rays with common endpoint?
A. Angle
B.Ray
C.Segment
D.Vertex