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character: Triangle Properties
topic: Understanding the types of triangles based on their angles and sides
grade: 9
subject: Mathematics
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character: Angle Sum Theorem
topic: Exploring the theorem that states that the sum of the interior angles of a triangle is always 180 degrees
grade: 9
subject: Mathematics
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character: Types of Triangles
topic: Classification of triangles: scalene, isosceles, and equilateral
grade: 9
subject: Mathematics
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character: Triangle Congruence
topic: Criteria for triangle congruence: SSS, SAS, ASA, AAS, and HL
grade: 9
subject: Mathematics
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