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Similar triangles

An explanation of the rules for triangles to be similar. The resource includes downloadable worksheets for students.

Additional details

Year level(s) Year 9
Audience Teacher
Purpose Content knowledge, Teaching resource, Student task
Format Web page
Teaching strategies and pedagogical approaches Mathematics investigation
Keywords Transformation, Ratio, Triangle, Angle, Proof, Congruent, Similar, Scale factor, Enlargement

Curriculum alignment

Curriculum connections Critical and creative thinking, Numeracy
Strand and focus Space
Topics Angles and geometric reasoning
AC: Mathematics (V9.0) content descriptions

Solve spatial problems, applying angle properties, scale, similarity, Pythagoras' theorem and trigonometry in right-angled triangles

Numeracy progression Understanding geometric properties (P7)
Proportional thinking (P7)
Understanding units of measurement (P10)

Copyright details




© 2014 The Australian Association of Mathematics Teachers (AAMT) Inc. Free-for-education material.