7. Dilate AABC from center P using a scale factor of -1. I B

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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This is a geometry question.
### Problem 7

**Objective:** To dilate triangle \( \triangle ABC \) from center \( P \) using a scale factor of \(-1\).

**Solution:**
1. **Identifying Points:** The given triangle \( \triangle ABC \) consists of vertices \( A \), \( B \), and \( C \). 
2. **Dilation Center:** The center of dilation is point \( P \).
3. **Scale Factor:** The scale factor is \(-1\).
  
**Dilation with Scale Factor \(-1\):**
- **Effect on Points:** Each point of the triangle will be reflected across the point \( P \) because the scale factor is \(-1\). This will essentially flip the triangle across point \( P \), creating an inverted image of the original triangle where each vertex is mapped to the opposite side of \( P \) at the same distance from \( P \) as the original vertex.

4. **Graphical Representation:**
   - The original triangle \( \triangle ABC \) is shown with vertices at points \( A \), \( B \), and \( C \).
   - Point \( P \) is the center of dilation, located inside the triangle.
   - After performing the dilation, each vertex of the triangle will be located such that:
     - The new position of \( A \) (let's call it \( A' \)) is directly opposite to the original \( A \) with respect to \( P \).
     - Similarly, the positions of \( B' \) and \( C' \) will be directly opposite to the original \( B \) and \( C \) with respect to \( P \).

In the diagram:
- The original triangle is indicated with vertices \( A \), \( B \), and \( C \).
- Point \( P \) is displayed to the left of triangle \( \triangle ABC \).
- The dilated triangle is not explicitly shown, but it would be reflected through \( P \) considering the equal distance and opposite direction from \( P \).
Transcribed Image Text:### Problem 7 **Objective:** To dilate triangle \( \triangle ABC \) from center \( P \) using a scale factor of \(-1\). **Solution:** 1. **Identifying Points:** The given triangle \( \triangle ABC \) consists of vertices \( A \), \( B \), and \( C \). 2. **Dilation Center:** The center of dilation is point \( P \). 3. **Scale Factor:** The scale factor is \(-1\). **Dilation with Scale Factor \(-1\):** - **Effect on Points:** Each point of the triangle will be reflected across the point \( P \) because the scale factor is \(-1\). This will essentially flip the triangle across point \( P \), creating an inverted image of the original triangle where each vertex is mapped to the opposite side of \( P \) at the same distance from \( P \) as the original vertex. 4. **Graphical Representation:** - The original triangle \( \triangle ABC \) is shown with vertices at points \( A \), \( B \), and \( C \). - Point \( P \) is the center of dilation, located inside the triangle. - After performing the dilation, each vertex of the triangle will be located such that: - The new position of \( A \) (let's call it \( A' \)) is directly opposite to the original \( A \) with respect to \( P \). - Similarly, the positions of \( B' \) and \( C' \) will be directly opposite to the original \( B \) and \( C \) with respect to \( P \). In the diagram: - The original triangle is indicated with vertices \( A \), \( B \), and \( C \). - Point \( P \) is displayed to the left of triangle \( \triangle ABC \). - The dilated triangle is not explicitly shown, but it would be reflected through \( P \) considering the equal distance and opposite direction from \( P \).
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