Writing and Geometry

Use symbols to express geometric ideas.

Use protractors to measure angles.

Created by: Jilleen Flynn

Use the diagram to name…

A

B

D

C

E

two intersecting rays

DE intersects CE

A

B

D

C

E

two parallel line segments

AB ll DE or BA ll ED

A

B

D

C

E

two perpendicular lines

AB BE or EB BA

A

B

D

C

E

one angle with B as its vertex

< ABE or < EBA

A

B

D

C

E

How many points are labeled?

5 points (A, B, C, D, and E) are labeled.

A

B

D

C

E

What tool would you use to measure that angle?

a protractor

Click the protractor to try some fun interactive online activities.

AB

D

C

E

Name

1. Tell the type of angle and themeasure in degrees.

two intersecting rays ________________________

two parallel line segments ____________________

two perpendicular lines ______________________

one angle with B as its vertex _____________________

One angle with E as its vertex _____________________

how many points are labeled ______________________

What tool do you use to measure angles? ________________________________

2. Use the diagram to name…

1. 2.

3.

4.

5.

6.

7.

8.

9.