Name ___________________________________________ Date _____________________ Class ____________________
1.1 Points, Lines, and Planes
Unit 1: Foundations for Geometry
Use the figure for Exercises 1–3.
1. Name two points that determine line AC.
____________________________________________
2. Name a point that is NOT collinear with point A
and point C.
____________________________________________
3. Name the points that determine plane ABC. _________________________________________
4. Two points determine one _________________________ .
5. Collinear points lie on the same __________________________ .
6. Three noncollinear points determine a ________________________ .
7. Coplanar points lie in the same ___________________________ .
Use the figure for Exercises 8–14.
8. Name the plane. ________________________________________
9. Name a segment. _______________________________________
10. Name a line.____________________________________________
11. Name three collinear points.
__________________________________________________________________
12. Name three noncollinear points.
_________________________________________________________________________________________________
13. Name the intersection of a line and a segment not on the line. __________________________
14. Name a pair of opposite rays. ______________________________________________________
Holt McDougal Geometry
Name ___________________________________________ Date _____________________ Class ____________________
Use the figure for Exercises 15–17.
15. A line segment is a part of a line and has two endpoints.
Name the endpoints of TU .
______________________________________________________________
16. Find the number of endpoints of UV . _________________
17. A ray is a part of a line that has one endpoint. Name the endpoint of UV .
______________________________________________________________
18. A constellation is a group of stars that
people use to make a picture. The
seven stars make the Big Dipper.
Draw DE, FE, FG, GH , HI, JG,
and JI, to complete the picture.
19. Points P and Q lie in a plane. Of PQ,
PQ, or PQ, name the one that has
no endpoints.
____________________________________________
Draw your answers in the space provided.
20. Michelle Kwan won a bronze medal in figure skating at the 2002 Salt Lake City Winter
Olympic Games. Michelle and her friend Alexei start back to back at point L and skate in
opposite directions. Michelle skates through point M, and Alexei skates through point K.
Draw their paths. What vocabulary word describes this figure?
Holt McDougal Geometry