Lesson 1-1 Basic Geometric Figures
ACTIVITY 1
continued
My Notes
Try These A
Give all possible names for each angle.
b.
N
a.
Check Your Understanding
TECHNOLOGY TIP
You can make your drawing for
Item 13 by using a pencil and a
straightedge or by using geometry
software.
13. Draw a figure that could be named ZLMN.
14. Is ZFDE a possible name for the figure at the
right? Explain.
15. How many different line segments does the figure
at the right include? Name them.
Z
D
LESSON 1-1 PRACTICE
16. Identify each geometric figure. Then give all possible names for the
figure.
a.
b.
0
B
d.
•L
P
4
M
N.
G
R
2
The diagram below includes RU. Use the figure for Items 17-19.
17. How many different rays does the figure include?
Name them.
18. Reason abstractly. Explain why ZS is not
an appropriate name for 21.
19. Give the other possible appropriate names for 22.
20. Draw LM. Then draw NP so that point N lies on LM.
6 SpringBoard Mathematics Geometry, Unit 1. Proof, Parallel and Perpendicular Lines