classifying angles sheet 1 classify each angle as acute, obtuse, right, or straight 1. angle diagram ______ 2. angle diagram ______ 3. angle diagram ______ 4. angle diagram ______ 5. angle diagram ______ 6. angle diagram ______ 7. angle diagram ______ 8. angle diagram ______ 9. angle diagram ______ 10. angle diagram ______ 11. 120° ______ 12. 163° ______ 13. 15° ______ 14. 37° ______ 15. 96° ______ 16. 90° ______ 17. 10° ______ 18. 47° ______ 19. 180° ______ 20. 100° ______

Question

Accepted Answer

To solve this, we use the definitions of angle types:
- **Acute Angle**: Less than $ 90^\circ $ (and greater than $ 0^\circ $).
- **Right Angle**: Exactly $ 90^\circ $.
- **Obtuse Angle**: Greater than $ 90^\circ $ (and less than $ 180^\circ $).
- **Straight Angle**: Exactly $ 180^\circ $.

### Visual Angles (1–10)
1. The angle is narrow (less than $ 90^\circ $) → **Acute**
2. The angle looks like a right angle (exactly $ 90^\circ $) → **Right**
3. The angle is wide (greater than $ 90^\circ $, less than $ 180^\circ $) → **Obtuse**
4. The angle is wide (greater than $ 90^\circ $, less than $ 180^\circ $) → **Obtuse**
5. The angle looks like a right angle (exactly $ 90^\circ $) → **Right**
6. The angle is a straight line (exactly $ 180^\circ $) → **Straight**
7. The angle is wide (greater than $ 90^\circ $, less than $ 180^\circ $) → **Obtuse**
8. The angle is narrow (less than $ 90^\circ $) → **Acute**
9. The angle is a straight line (exactly $ 180^\circ $) → **Straight**
10. The angle is narrow (less than $ 90^\circ $) → **Acute**

### Angles with Degrees (11–20)
11. $ 120^\circ $: $ 90^\circ < 120^\circ < 180^\circ $ → **Obtuse**
12. $ 163^\circ $: $ 90^\circ < 163^\circ < 180^\circ $ → **Obtuse**
13. $ 15^\circ $: $ 0^\circ < 15^\circ < 90^\circ $ → **Acute**
14. $ 37^\circ $: $ 0^\circ < 37^\circ < 90^\circ $ → **Acute**
15. $ 96^\circ $: $ 90^\circ < 96^\circ < 180^\circ $ → **Obtuse**
16. $ 90^\circ $: Exactly $ 90^\circ $ → **Right**
17. $ 10^\circ $: $ 0^\circ < 10^\circ < 90^\circ $ → **Acute**
18. $ 47^\circ $: $ 0^\circ < 47^\circ < 90^\circ $ → **Acute**
19. $ 180^\circ $: Exactly $ 180^\circ $ → **Straight**
20. $ 100^\circ $: $ 90^\circ < 100^\circ < 180^\circ $ → **Obtuse**

### Final Answers (1–20)
1. Acute
2. Right
3. Obtuse
4. Obtuse
5. Right
6. Straight
7. Obtuse
8. Acute
9. Straight
10. Acute
11. Obtuse
12. Obtuse
13. Acute
14. Acute
15. Obtuse
16. Right
17. Acute
18. Acute
19. Straight
20. Obtuse

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QUESTION IMAGE

Question

Explanation:

Visual Angles (1–10)

Angles with Degrees (11–20)

Final Answers (1–20)

Answer:

Visual Angles (1–10)

Angles with Degrees (11–20)

Final Answers (1–20)