Name: ______

Parallel Lines Print Activity

Use the “Explore It” mode to answer the following questions.

1.  In Explore It 1, click on reset and choose this parallel line orientation:

Label the diagram (as seen on your screen) with the angles from A to H along with their measurements.

2.  In Explore It 1, click on reset and choose this parallel line orientation:

Label the diagram (as seen on your screen) with the angles from A to H along with their measurements.

3. a. Using “Explore It 1”, choose the angle type, line orientation, and angle label from the chart to complete the statements in the angle relationship column.

Angle type / Line orientation / Angle relationship
Vertically opposite / / A is vertically opposite to __
B is vertically opposite to __
E is vertically opposite to __
F is vertically opposite to __
Corresponding / / 1 is corresponding to __
2 is corresponding to __
3 is corresponding to __
4 is corresponding to __
Alternate / / A is alternate to __
B is alternate to __
C is alternate to __
D is alternate to __

b. Change the parallel line orientation to and review

the Angle relationship column of the chart.

All of the angle relationships are ______.

(the same/different)

4. a. Move transversal t so that A = . State all the other angles that have the same measurement:______.

b. The measurement of B =

c. State all the other angles that are the same size as B: ______.

5.  Reset to “Explore It 2”.

a.  The choices for line orientations are either ______or

______.

b.  Explore the result of moving the transversal when the lines are not parallel.

i) Only the ______angles are equal.

(vertically opposite/ corresponding/alternate)

ii) Can you make each group of 4 angles have the same measurement?______.

(yes/no)

6. Remain in “Explore It 2”; choose reset and this line orientation:

a. Label the diagram below with the measurements of the 4 sets of related angles.

b. Move transversal t as far right as possible. Label the diagram below with the measurements of the 4 sets of related angles.

c. Move transversal t until all angles are the same measurement. Each angle will be

Junior High Math Interactives Page 1 of 4

ã2006 Alberta Education (www.LearnAlberta.ca)

Space and Shape / Transformations / Object Interactive / Print Activity