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Right-angle triangle trigonometry

In this unit students build an understanding of ratios in right triangles, which leads to naming cosine, sine and tangent as trigonometric ratios. Students encounter several contexts to both make sense of and apply right-angle triangle measurement.

Resource details
Year level: Year 9
Purpose: Student activities Teaching resource
Strand: Space
Topic: Pythagoras and trigonometry
Audience: Teachers
Format: Webpage
Australian Curriculum code: AC9M9SP02 AC9M9M03
Numeracy progression: Proportional thinking (P7) Understanding geometric properties (P7) Understanding units of measurement (P10)
Publisher: Illustrative Mathematics
Keywords: Pythagoras's theorem angle ratio