se the following figure for Exercises 7–12. 1 2. 4/5 6 7 m If I || m, determine whether each statement is true or false. If true, explain why. 7. 24 = 2 + Z6 8. 23 22 + 25 9. /1 + /2 + /6 = 180°

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
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Help with 7 & 8?

### Exercises 7–12

**Instructions:**
Use the figure provided to answer exercises 7–12.

**Figure Description:**
The figure consists of two parallel lines, labeled \( l \) and \( m \), with a transversal intersecting them creating several angles. The angles are numbered from 1 to 7.

**Exercise Statements:**
Determine whether each statement is true or false. If true, explain why.

7. \( \angle 4 = \angle 2 + \angle 6 \)

8. \( \angle 3 = \angle 2 + \angle 5 \)

9. \( \angle 1 + \angle 2 + \angle 6 = 180^\circ \)

10. \( \angle 4 + \angle 1 = 180^\circ \)

11. \( \angle 2 + \angle 6 = 180^\circ \)

12. \( \angle 7 = \angle 1 + \angle 2 \)

**Explanation of the Diagram:**
The diagram shows angles formed by a transversal intersecting two parallel lines \( l \) and \( m \). The angles are created at the intersections and are labeled with numbers for reference in the exercises. Consider properties of parallel lines and transversals, such as alternate interior angles, corresponding angles, and the sum of angles on a straight line, to determine the truth of the statements.
Transcribed Image Text:### Exercises 7–12 **Instructions:** Use the figure provided to answer exercises 7–12. **Figure Description:** The figure consists of two parallel lines, labeled \( l \) and \( m \), with a transversal intersecting them creating several angles. The angles are numbered from 1 to 7. **Exercise Statements:** Determine whether each statement is true or false. If true, explain why. 7. \( \angle 4 = \angle 2 + \angle 6 \) 8. \( \angle 3 = \angle 2 + \angle 5 \) 9. \( \angle 1 + \angle 2 + \angle 6 = 180^\circ \) 10. \( \angle 4 + \angle 1 = 180^\circ \) 11. \( \angle 2 + \angle 6 = 180^\circ \) 12. \( \angle 7 = \angle 1 + \angle 2 \) **Explanation of the Diagram:** The diagram shows angles formed by a transversal intersecting two parallel lines \( l \) and \( m \). The angles are created at the intersections and are labeled with numbers for reference in the exercises. Consider properties of parallel lines and transversals, such as alternate interior angles, corresponding angles, and the sum of angles on a straight line, to determine the truth of the statements.
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