# Parallel and Perpendicular Lines

# Perpendicular Lines Examples

### Example 1

If two lines intersect and one of the angles formed from the intersection is 90°, what is the measurement of the adjacent angle? |

### Example 2

Identify which of the following lines are perpendicular? |

### Example 3

What is the relationship of |

### Example 4

Find a line that is perpendicular through 3 |