1. Use the triangle below to prove the triangle sum theorem.
Transcribed Image Text: The image is a table designed for educational purposes, structured to help students organize information logically.
**Table Structure:**
- **Columns:**
- The table has two main columns.
1. **Statement:** This column is meant for assertions, propositions, or hypotheses that learners are examining or proving.
2. **Justification:** This column is used to provide the reasoning, evidence, or proof behind each statement.
- **Rows:**
- The table contains multiple rows, each intended to hold a distinct statement and its corresponding justification.
**Design Details:**
- The headers for each column are prominently displayed and styled in green.
- There are several horizontally aligned black lines separating each row, ensuring clarity and organization.
- The background of the table is light blue, which visually distinguishes the fields where text is to be entered.
This table format is useful for subjects that require critical thinking and detailed reasoning, such as mathematics, science, or philosophy. It helps in systematically breaking down complex ideas into clear and understandable components.
Transcribed Image Text: The image depicts a green equilateral triangle labeled with vertices X, Y, and Z.
### Diagram Explanation:
- **Shape:** Equilateral Triangle
- **Vertices:**
- Vertex X is located at the top of the triangle.
- Vertex Y is at the bottom-left corner.
- Vertex Z is at the bottom-right corner.
- **Color:** The triangle is filled with a solid green color, and the outlines are black.
- **Properties:** In an equilateral triangle, all three sides are of equal length, and each interior angle measures 60 degrees. This geometric shape is symmetrical and balanced.
This triangle can be used to demonstrate various geometric principles, including symmetry, angles, and the properties of equilateral triangles.
Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).
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