Chapter Overview
This chapter explores the concept of triangles, their types, and various properties related to sides and angles. It emphasizes triangle congruence and introduces several important theorems including the Triangle Inequality Theorem, Angle Sum Property, and more. Understanding triangles is crucial as they form the foundation for many geometric concepts and constructions.
Important Keywords
- Triangle: A polygon with three sides and three angles.
- Congruence: Exact match in shape and size.
- Median: A line segment joining a vertex to the midpoint of the opposite side.
- Altitude: A perpendicular dropped from a vertex to the opposite side.
- Angle Sum Property: The sum of interior angles of a triangle is 180°.
- Scalene, Isosceles, Equilateral: Classifications based on side lengths.
Detailed Notes
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