Given: M is the midpoint of HS and GT. Prove: ΔGΜΗ ΔΤM H 1) Mis the midpoint of HS and GT. 1) 2) GM = TM 2) 3) HM = SM 3) 4) ZGMH = ZTMS 4) 5) AGMH = ATMS 5)

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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**Given:** \( M \) is the midpoint of \( \overline{HS} \) and \( \overline{GT} \).

**Prove:** \(\triangle GMH \cong \triangle TMS\)

The diagram shows two triangles, \( \triangle GMH \) and \( \triangle TMS \), intersecting at a common point \( M \), with lines \(\overline{HS}\) and \(\overline{GT}\).

**Proof:**

1. **\(M\) is the midpoint of \(\overline{HS}\) and \(\overline{GT}\).**  
   *Reason:* Given

2. **\(GM \cong TM\)**  
   *Reason:* As \(M\) is the midpoint, \( \overline{GM} = \overline{TM} \).

3. **\(HM \cong SM\)**  
   *Reason:* As \(M\) is the midpoint, \( \overline{HM} = \overline{SM} \).

4. **\(\angle GMH \cong \angle TMS\)**  
   *Reason:* Vertically opposite angles are equal.

5. **\(\triangle GMH \cong \triangle TMS\)**  
   *Reason:* By SAS (Side-Angle-Side) congruence criterion.
Transcribed Image Text:**Given:** \( M \) is the midpoint of \( \overline{HS} \) and \( \overline{GT} \). **Prove:** \(\triangle GMH \cong \triangle TMS\) The diagram shows two triangles, \( \triangle GMH \) and \( \triangle TMS \), intersecting at a common point \( M \), with lines \(\overline{HS}\) and \(\overline{GT}\). **Proof:** 1. **\(M\) is the midpoint of \(\overline{HS}\) and \(\overline{GT}\).** *Reason:* Given 2. **\(GM \cong TM\)** *Reason:* As \(M\) is the midpoint, \( \overline{GM} = \overline{TM} \). 3. **\(HM \cong SM\)** *Reason:* As \(M\) is the midpoint, \( \overline{HM} = \overline{SM} \). 4. **\(\angle GMH \cong \angle TMS\)** *Reason:* Vertically opposite angles are equal. 5. **\(\triangle GMH \cong \triangle TMS\)** *Reason:* By SAS (Side-Angle-Side) congruence criterion.
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