Prove the following: Given: AC1 BD,D is the midpoint of AC Prove: AABD = ACBD A

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
icon
Related questions
Topic Video
Question

Prove the following

# Prove the Following:

## Given:
- \( \overline{AC} \perp \overline{BD} \), D is the midpoint of \( \overline{AC} \)

## Prove:
- \( \triangle ABD \cong \triangle CBD \)

### Diagram Explanation:
The diagram shows a rectangle with points A, B, C, D. Lines AD and DC are diagonals intersecting at point D, creating right angles with line BD.

### Proof Steps:

| Statement                                      | Reason                                       |
|------------------------------------------------|----------------------------------------------|
| 1. \( \overline{AC} \perp \overline{BD} \), D is the midpoint of \( \overline{AC} \) | 1. Given                                       |
| 2. \( \angle ADB \) & \( \angle CDB \) are right angles         | 2. Definition of Perpendicular Lines          |
| 3. All right angles are congruent              | 3.                                            |
| 4. \( \overline{AD} \cong \overline{DC} \)                        | 4. Definition of Midpoint                     |
| 5. DB \( \cong \) DB                           | 5. Reflexive Property                         |
| 6. \( \triangle ABD \cong \triangle CBD \)                     | 6. SAS (Side-Angle-Side)                      |

### Key:
- **Given**: Information that is provided as part of the problem.
- **Definition of Midpoint**: The midpoint divides a line into two equal segments.
- **Definition of Perpendicular Lines**: Perpendicular lines intersect to form right angles.
- **Reflexive Property**: Any geometric quantity is equal to itself.
- **SAS (Side-Angle-Side)**: A rule stating if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, the triangles are congruent.
Transcribed Image Text:# Prove the Following: ## Given: - \( \overline{AC} \perp \overline{BD} \), D is the midpoint of \( \overline{AC} \) ## Prove: - \( \triangle ABD \cong \triangle CBD \) ### Diagram Explanation: The diagram shows a rectangle with points A, B, C, D. Lines AD and DC are diagonals intersecting at point D, creating right angles with line BD. ### Proof Steps: | Statement | Reason | |------------------------------------------------|----------------------------------------------| | 1. \( \overline{AC} \perp \overline{BD} \), D is the midpoint of \( \overline{AC} \) | 1. Given | | 2. \( \angle ADB \) & \( \angle CDB \) are right angles | 2. Definition of Perpendicular Lines | | 3. All right angles are congruent | 3. | | 4. \( \overline{AD} \cong \overline{DC} \) | 4. Definition of Midpoint | | 5. DB \( \cong \) DB | 5. Reflexive Property | | 6. \( \triangle ABD \cong \triangle CBD \) | 6. SAS (Side-Angle-Side) | ### Key: - **Given**: Information that is provided as part of the problem. - **Definition of Midpoint**: The midpoint divides a line into two equal segments. - **Definition of Perpendicular Lines**: Perpendicular lines intersect to form right angles. - **Reflexive Property**: Any geometric quantity is equal to itself. - **SAS (Side-Angle-Side)**: A rule stating if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, the triangles are congruent.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Propositional Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, geometry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Elementary Geometry for College Students
Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning