Transversals

Discovery GOAL
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

To discover the special relationship

each angle pair has when two

parallel lines are cut by a

transversal.

Discovery
Directions

Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

Directions:
❏

Determine each angle measure given the angles below.

❏

Identify the Transversal.

❏

Determine if the transversal is intersecting parallel lines or not.

❏

Name the Angle Pair. (Linear Pair, Vertical, SSI, SSE, Al, AE, Corr.)

❏

Determine if the angles are Congruent, Supplementary, or Neither.

​Go to the last page in your Homework Packet

40°

40°

40°

40°

140°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

Multiple Choice

What is the transversal for angles 1 and 8?

• line a

• line b

• line c

• line d

Multiple Choice

What is the name for the pair of angles 1 and 8?

• Alt Int.

• Alt Ext.

• SSI

• SSE

• Corr.

Multiple Choice

Does the transversal for angles 1 and 8 intersect parallel lines??

• yes

• no

40°

40°

40°

40°

140°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

If two line are cut by a transversal,

then alternate exterior angles are

congruent.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

If two line are cut by a transversal,

then same side interior angles are

supplementary.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

If two parallel lines are cut by a

transversal, then alternate interior

angles are congruent.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

If two parallel lines are cut by a

transversal, then same side exterior

angles are congruent.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

If two parallel lines are cut by a
transversal, then corresponding

angles are congruent.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

Vertical Angles are congruent.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°

A/S/N
Discovery:

https://docs.google.co
m/presentation/d/1Z9f
50f4udRli1cPlzC6CK1l
2fbmcKpEFcqVji4xs5
Mk/edit?usp=sharing

Linear pairs are congruent.

40°

40°

40°

40°

140°

140°

140°

100°

100°

100°

100°

80°

80°

80°

80°