# Congruent Triangles

### Example 1

Find the measure of ∠1.

### Example 2

Find the measure of ∠2.

### Example 3

Find the measure of ∠3.

### Example 4

Find the measure of ∠4 if it is equal to twice the measure of ∠5.

### Example 5

What is the measure of ∠5 if it equals half the measure of ∠4?

### Example 6

Find the measure of ∠6.

### Example 7

Find the measure of ∠7.