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Area of a triangle inquiry

The prompt will challenge students to think about the area of a non-right-angled triangle, using the general sine formula. They also explore the concept of proof, deepening their conceptual understanding. The resource includes classroom examples, teacher notes and guided questions.

Resource details
Year level
Year 9 Year 10
Purpose
Assessment tasks Student activities Teaching resource
Strand
Space Measurement Algebra
Topic
Algebraic expressions Angles and geometric reasoning
Audience
Teachers
Format
Downloadable resource
Australian Curriculum code
AC9M9SP01 AC9M10M03
Numeracy progression
Proportional thinking (P7) Understanding geometric properties (P7) Understanding units of measurement (P10)
Publisher
Inquiry Maths
Copyright
© Andrew Blair 2012-21. Creative Commons BY-NC-SA 4.0.
Keywords
sine ratio angle proof