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Similar and congruent triangles (view source)
Revision as of 16:33, 28 December 2013
, 16:33, 28 December 2013→Learning objectives
==Concept #2. Similarity postulates==
==Concept #2. Similarity postulates==
===Learning objectives===
===Learning objectives===
Two triangles are said to be similar if any of the following equivalent conditions hold:
# The SSS similarity postulate states that if the sides of two triangles are in proportion, then the triangles are similar.
# The SSS similarity postulate states that if the sides of two triangles are in proportion, then the triangles are similar.
# The AA similarity postulate states that if two angles of one triangle are congruent to two angles of another triangle, then the two triangles are said to be similar.
# The AA similarity postulate states that if two angles of one triangle are congruent to two angles of another triangle, then the two triangles are said to be similar.
# SAS Similarity Postulate states, “If an angle of one triangle is congruent to the corresponding angle of another triangle and the sides that include this angle are proportional, then the two triangles are similar.”
# SAS Similarity Postulate states, “If an angle of one triangle is congruent to the corresponding angle of another triangle and the sides that include this angle are proportional, then the two triangles are similar.”
===Notes for teachers===
===Notes for teachers===