Compete each proof. 5. Given: m || n; Z1 23 Prove: k || 1

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
Problem 1CT
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**Complete Each Proof**  

**Exercise 5:**

- **Given:** \( m \parallel n, \angle 1 \cong \angle 3 \)
- **Prove:** \( k \parallel l \)

| Statements               | Reasons |
|--------------------------|---------|
| \( m \parallel n \)      | Given   |
| \( \angle 1 \cong \angle 3 \) | Given   |

**Explanation of Diagram for Exercise 5:**

The diagram shows two parallel lines \( m \) and \( n \) with a transversal intersecting them, creating angles labeled \( 1 \) and \( 3 \). There are also two other lines, \( k \) and \( l \), intersected by the same transversal, showing the relationship that needs to be proven. The given angles imply a pattern that needs to be used to prove the parallelism between lines \( k \) and \( l \).

---

**Exercise 6:**

- **Given:** \( p \parallel q; \angle 1 \) and \( \angle 4 \) are supplementary
- **Prove:** \( r \parallel s \)

(No statements or reasons are filled out for Exercise 6 in the image.)

**Explanation of Diagram for Exercise 6:**

The diagram displays two parallel lines \( p \) and \( q \) intersected by a transversal, forming angles \( 1 \) and \( 4 \). Additional lines \( r \) and \( s \) intersect the transversal as well, suggesting a relationship between them that has to be proven. In the context of geometry, the concept of supplementary angles often relates to parallel lines, providing a foundational step to proving the unknown parallel lines \( r \) and \( s \).
Transcribed Image Text:**Complete Each Proof** **Exercise 5:** - **Given:** \( m \parallel n, \angle 1 \cong \angle 3 \) - **Prove:** \( k \parallel l \) | Statements | Reasons | |--------------------------|---------| | \( m \parallel n \) | Given | | \( \angle 1 \cong \angle 3 \) | Given | **Explanation of Diagram for Exercise 5:** The diagram shows two parallel lines \( m \) and \( n \) with a transversal intersecting them, creating angles labeled \( 1 \) and \( 3 \). There are also two other lines, \( k \) and \( l \), intersected by the same transversal, showing the relationship that needs to be proven. The given angles imply a pattern that needs to be used to prove the parallelism between lines \( k \) and \( l \). --- **Exercise 6:** - **Given:** \( p \parallel q; \angle 1 \) and \( \angle 4 \) are supplementary - **Prove:** \( r \parallel s \) (No statements or reasons are filled out for Exercise 6 in the image.) **Explanation of Diagram for Exercise 6:** The diagram displays two parallel lines \( p \) and \( q \) intersected by a transversal, forming angles \( 1 \) and \( 4 \). Additional lines \( r \) and \( s \) intersect the transversal as well, suggesting a relationship between them that has to be proven. In the context of geometry, the concept of supplementary angles often relates to parallel lines, providing a foundational step to proving the unknown parallel lines \( r \) and \( s \).
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