1=Line
2=Line Segment
3=Ray
4=Adjacent Angles
5=Vertical Angles
*Just FYI for #1, 2, and 3: You can tell because of the symbols above the letters. For example #1(Line) has a line with arrows on either end. This shows it is a line because lines are infinite from either side. #2(Line Segment) has just a straight line above the letters. This shows it is a line segment because it has a definite beginning and a definite end point. #3(Ray) has a straight line with an arrow at the end of ONE side. this shows it is a ray because a ray has a definite beginning, but then goes on infinitely from the other side(you can think of it kinda like half line-segment, half line).
