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→Concept 3: Theorems and properties
===== Activities =====
===== Activities =====
====== [[Types of triangles based on sides]]: Triangles formed are dependent on measures of sides. ======
====== [[Types of triangles based on sides]]: Formation of a triangle depends on measures of sides. ======
====== [[Types of triangles based on angles]]: Triangles formed are dependent on measures of angles. ======
====== [[Types of triangles based on angles]]: Formation of a triangle depends on measures of angles. ======
==== Concept 3: Theorems and properties ====
==== Concept 3: Theorems and properties ====
Properties of triangles are logically proved with theorems deductively. Relations ships between angles of a triangle when a triangle is formed are recognized and understood
===== Activities =====
===== Activities =====
====== [[Angle sum property]]: ======
====== [[Angle sum property]] : Relation between angles formed inside a triangle ======
====== [[Relation between interior and exterior angles in triangle]] ======
====== [[Relation between interior and exterior angles in triangle|Exterior angle theorem:]] Relation between angles formed inside a triangles and angles outside a triangle ======
====== Concept 4: Construction of triangles ======
==== Concept 5: Concurrency in triangles ====