Given triangle MAT is an isosceles triangle and point H is the midpoint of MT. Prove LAMH LATH.

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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**Title:** Proving Angles in an Isosceles Triangle

**Introduction:**
In this geometric proof, we explore the properties of an isosceles triangle. You are given that triangle MAT is an isosceles triangle, and point H is the midpoint of line segment MT. The goal is to prove that angles ∠AMH and ∠ATH are congruent.

**Diagram Explanation:**
The diagram shows triangle MAT with two equal sides, MA and TA, indicated by hash marks. Point H is labeled as the midpoint of line segment MT.

**Proof Table:**

| Statements                        | Reasons                             |
|-----------------------------------|-------------------------------------|
| 1. △MAT is isosceles              | 1. Given                            |
| 2. MA ≅ TA                        | 2. Given                            |
| 3. H is the midpoint of MT        | 3. Given                            |
| 4. MH ≅ TH                        | 4. Defintion of midpoint                   |
| 5. △MHA ≅ △THA                    | 5. Reflexive property of congruence |
| 6. ∠AMH ≅ ∠ATH                    | 6. CPCTC (Corresponding Parts of Congruent Triangles are Congruent) |

**Conclusion:**
We've demonstrated that angles ∠AMH and ∠ATH are congruent using the properties of an isosceles triangle and the midpoint theorem. This exercise highlights the application of basic geometric principles and congruence to establish angle relationships.
Transcribed Image Text:**Title:** Proving Angles in an Isosceles Triangle **Introduction:** In this geometric proof, we explore the properties of an isosceles triangle. You are given that triangle MAT is an isosceles triangle, and point H is the midpoint of line segment MT. The goal is to prove that angles ∠AMH and ∠ATH are congruent. **Diagram Explanation:** The diagram shows triangle MAT with two equal sides, MA and TA, indicated by hash marks. Point H is labeled as the midpoint of line segment MT. **Proof Table:** | Statements | Reasons | |-----------------------------------|-------------------------------------| | 1. △MAT is isosceles | 1. Given | | 2. MA ≅ TA | 2. Given | | 3. H is the midpoint of MT | 3. Given | | 4. MH ≅ TH | 4. Defintion of midpoint | | 5. △MHA ≅ △THA | 5. Reflexive property of congruence | | 6. ∠AMH ≅ ∠ATH | 6. CPCTC (Corresponding Parts of Congruent Triangles are Congruent) | **Conclusion:** We've demonstrated that angles ∠AMH and ∠ATH are congruent using the properties of an isosceles triangle and the midpoint theorem. This exercise highlights the application of basic geometric principles and congruence to establish angle relationships.
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