# Points, Lines, Angles, and Planes

### Example 1

If m∠*MLN* = 60°, what is the measurement of ∠*KLO*?

### Example 2

Which lines, if any, are perpendicular?

### Example 3

Is ∠*LOQ* an obtuse, right, or acute angle? How do you know?

### Example 4

What is the measurement of ∠*POR*?

### Example 5

Is ∠*LOK* an obtuse, right, or acute angle?