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Congruence of plane figures

From the AMSI TIMES project, this resource explains the meaning of congruence and demonstrates the various proofs for triangles to be congruent. There are exercises and references too.

Additional details

Year level(s) Year 8
Audience Teacher
Purpose Content knowledge, Teaching resource, Student task
Format Web page
Teaching strategies and pedagogical approaches Explicit teaching
Keywords Congruent, Quadrilateral, Side, Angle, Triangle, Transformation, Plane shape

Curriculum alignment

Curriculum connections Critical and creative thinking, Numeracy
Strand and focus Space
Topics Angles and geometric reasoning
AC: Mathematics (V9.0) content descriptions
Identify the conditions for congruence and similarity of triangles and explain the conditions for other sets of common shapes to be congruent or similar, including those formed by transformations

Establish properties of quadrilaterals using congruent triangles and angle properties, and solve related problems explaining reasoning

Numeracy progression Understanding geometric properties (P6, P7)
Proportional thinking (P6)

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