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===== Activities =====
===== Activities =====
====== '''[[Introducing formation of angle]]''' ======
====== [[Introducing formation of angle]] ======
====== '''[[Types of angles]]''' ======
====== [[Types of angles]] ======
====== Concept 2: Pairs of angles ======
====== Concept 2: Pairs of angles ======
====== '''[[Adjacent angles]]''' ======
====== [[Adjacent angles]] ======
====== '''[[Complementary angles]]''' ======
====== [[Complementary angles]] ======
====== '''[[Supplementary angles]]''' ======
====== [[Supplementary angles]] ======
====== '''[[Vertically opposite angles]]''' ======
====== [[Vertically opposite angles]] ======
====== '''[[Linear pair axiom : If a ray stands on a line, then the sum of two adjacent angles so formed is 180 degrees|Linear pair axiom : If a ray stands on a line, then the sum of two adjacent angles so formed is 180<sup>o</sup>]]''' ======
====== [[Linear pair axiom : If a ray stands on a line, then the sum of two adjacent angles so formed is 180 degrees|Linear pair axiom : If a ray stands on a line, then the sum of two adjacent angles so formed is 180<sup>o</sup>]] ======
====== '''[[Linear pair axiom : If the sum of two adjacent angles is 180 degrees, then the non-common arms of the angles form a line|Linear pair axiom : If the sum of two adjacent angles is 180<sup>o</sup>, then the non-common arms of the angles form a line]]''' ======
====== [[Linear pair axiom : If the sum of two adjacent angles is 180 degrees, then the non-common arms of the angles form a line|Linear pair axiom : If the sum of two adjacent angles is 180<sup>o</sup>, then the non-common arms of the angles form a line]] ======
==== Concept 3: '''Parallel lines''' ====
==== Concept 3: '''Parallel lines''' ====
====== [[Introducing parallel lines]] ======
====== [[Introducing parallel lines|'''Introducing parallel lines''']] ======
====== '''[[Angles associated with parallel lines]]''' ======
====== '''[[Angles associated with parallel lines]]''' ======