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Similar and congruent triangles (view source)
Revision as of 04:50, 30 December 2013
, 04:50, 30 December 2013→Concept # 2. Tests for congruency of triangles.
==Concept # 2. Tests for congruency of triangles.==
==Concept # 2. Tests for congruency of triangles.==
===Learning objectives===
===Learning objectives===
Any triangle is defined by six measures (three sides, three angles). Triangles are congruent if:<br>
# All three corresponding sides are equal in length. SSS (side side side) congruency postulate
# A pair of corresponding sides and the included angle are equal. -- SAS (side angle side) congruency postulate.
# A pair of corresponding angles and the included side are equal. -- ASA (angle side angle) congruency postulate.
# A pair of corresponding angles and a non-included side are equal.-- AAS (angle angle side) congruency postulate.
# HL (hypotenuse leg of a right triangle) :Two right triangles are congruent if the hypotenuse and one leg are equal.Also known as RHS postulate.
===Notes for teachers===
===Notes for teachers===
===Activity No # ===
===Activity No # ===
