Question

for exercises 9 - 24, use the figure on the right. name the vertex of each angle. 9. ∠1 10. ∠2 11. ∠6 12. ∠5 name the sides of each angle. 13. ∠adb 14. ∠6

Explanation:

Step1: Recall angle - vertex and side concepts

The vertex of an angle is the common endpoint of the rays that form the angle. The sides of an angle are the two rays that meet at the vertex.

Step2: Identify vertex for ∠1

For ∠1, the vertex is point E as it is the common endpoint of the two rays forming the angle.

Step3: Identify vertex for ∠2

For ∠2, the vertex is point B as it is the common endpoint of the two rays forming the angle.

Step4: Identify vertex for ∠5

For ∠5, the vertex is point A as it is the common endpoint of the two rays forming the angle.

Step5: Identify vertex for ∠6

For ∠6, the vertex is point A as it is the common endpoint of the two rays forming the angle.

Step6: Identify sides for ∠ADB

For ∠ADB, the sides are ray DA and ray DB.

Step7: Identify sides for ∠6

For ∠6, the sides are ray AD and ray AC.

Answer:

1. Vertex of ∠1: E
2. Vertex of ∠2: B
3. Vertex of ∠5: A
4. Vertex of ∠6: A
5. Sides of ∠ADB: Ray DA, Ray DB
6. Sides of ∠6: Ray AD, Ray AC