Congruence and Quadrilaterals · Geometry

Triangle Congruence Criteria

Deep dive into SAS, ASA, SSS, and RHS rules to determine when two triangles are identical.

Key Questions

  1. 1Why is Angle-Angle-Side a valid congruence criterion while Side-Side-Angle is not?
  2. 2How can we use triangle congruence to find measurements of inaccessible objects?
  3. 3What is the logical link between congruence and symmetry?

CBSE Learning Outcomes

CBSE: Triangles - Class 9
Class: Class 9
Subject: Mathematics
Unit: Congruence and Quadrilaterals
Period: Geometry

Suggested Methodologies

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Proving theorems related to the diagonals and sides of various types of quadrilaterals.

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