1. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7
∠5 & ∠6
∠8 & ∠2
∠3 & ∠8
∠7 & ∠3
∠2 & ∠4

2. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7 Alternate Exterior
∠5 & ∠6
∠8 & ∠2
∠3 & ∠8
∠7 & ∠3
∠2 & ∠4

3. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7 Alternate Exterior
∠5 & ∠6 Linear Pair
∠8 & ∠2
∠3 & ∠8
∠7 & ∠3
∠2 & ∠4

4. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7 Alternate Exterior
∠5 & ∠6 Linear Pair
∠8 & ∠2 Alternate Interior
∠3 & ∠8
∠7 & ∠3
∠2 & ∠4

5. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7 Alternate Exterior
∠5 & ∠6 Linear Pair
∠8 & ∠2 Alternate Interior
∠3 & ∠8 Consecutive Interior
∠7 & ∠3
∠2 & ∠4

6. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7 Alternate Exterior
∠5 & ∠6 Linear Pair
∠8 & ∠2 Alternate Interior
∠3 & ∠8 Consecutive Interior
∠7 & ∠3 Corresponding
∠2 & ∠4

7. Warmup
Identify each pair of angles as corresponding, alternate interior, alternate exterior, consecutive interior, vertical, or linear pair
∠1 & ∠7 Alternate Exterior
∠5 & ∠6 Linear Pair
∠8 & ∠2 Alternate Interior
∠3 & ∠8 Consecutive Interior
∠7 & ∠3 Corresponding
∠2 & ∠4 Vertical

8. Are the lines in this building parallel?

9. Are the lines in this building parallel? (better view)

10. Card Activity
Make a t-chart on your poster paper where the left column is “Proves Lines Parallel” and the right column is “Does Not Prove Lines Parallel”
As a group decide in which column each card belongs, then tape the card in that column
The angle numbers come from this diagram: