Given: AC BD and CAB ZDBA. Prove: ABC ABAD. CAB LOBA

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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I have to prove that Triangle ABC is congruent to BAD.  i have to right the steps in order and give the reason.  I have no idea where to start.  Please help.

**Title: Geometry Proofs: Triangle Congruence**

**Objective:**

Given:
- \( \overline{AC} \cong \overline{BD} \)
- \( \angle CAB \cong \angle DBA \)

Prove: 
- \( \triangle ABC \cong \triangle BAD \)

**Instructions:**

Use the equivalence properties to complete this proof. 

**Proof Table:**

| Step | Statement | Reason |
|------|-----------|--------|
| 1    | \( AC \cong BD \) | Given |
| 2    | \( \angle CAB \cong \angle DBA \) | Given |

**Diagram Explanation:**

The diagram displays two triangles, \( \triangle ABC \) and \( \triangle BAD \), intersecting at points \( C \) and \( D \), forming an 'X' shape. Lines \( \overline{AC} \) and \( \overline{BD} \) intersect, with point \( E \) as the intersection on the diagram. The congruent segments \( \overline{AC} \) and \( \overline{BD} \) are marked, along with congruent angles \( \angle CAB \) and \( \angle DBA \).

**Note:** 
Lines \( \overline{AC} \) and \( \overline{BD} \) are segments.

**Conclusion:**
The goal is to prove \( \triangle ABC \cong \triangle BAD \) using the provided statements and reasons, assuming relationships given regarding segments and angles. Complete the proof using appropriate geometrical postulates.
Transcribed Image Text:**Title: Geometry Proofs: Triangle Congruence** **Objective:** Given: - \( \overline{AC} \cong \overline{BD} \) - \( \angle CAB \cong \angle DBA \) Prove: - \( \triangle ABC \cong \triangle BAD \) **Instructions:** Use the equivalence properties to complete this proof. **Proof Table:** | Step | Statement | Reason | |------|-----------|--------| | 1 | \( AC \cong BD \) | Given | | 2 | \( \angle CAB \cong \angle DBA \) | Given | **Diagram Explanation:** The diagram displays two triangles, \( \triangle ABC \) and \( \triangle BAD \), intersecting at points \( C \) and \( D \), forming an 'X' shape. Lines \( \overline{AC} \) and \( \overline{BD} \) intersect, with point \( E \) as the intersection on the diagram. The congruent segments \( \overline{AC} \) and \( \overline{BD} \) are marked, along with congruent angles \( \angle CAB \) and \( \angle DBA \). **Note:** Lines \( \overline{AC} \) and \( \overline{BD} \) are segments. **Conclusion:** The goal is to prove \( \triangle ABC \cong \triangle BAD \) using the provided statements and reasons, assuming relationships given regarding segments and angles. Complete the proof using appropriate geometrical postulates.
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