# Parallel and Perpendicular Lines

### Example 1

Which angle is the corresponding angle of ∠2?

### Example 2

Which angle is the alternate interior angle to ∠1?

### Example 3

What do we call a line that intersects with two parallel lines?

### Example 4

Which two angles are supplementary?

### Example 5

Which three angles add up to 180°?

### Example 6

If ∠3 has a measure of 70°, what is the measure of ∠5?

### Example 7

If ∠3 has a measure of 70° and ∠1 ≅ ∠2, what would be the measure of ∠4?

### Example 8

What are the values of *x* and *y*?