Geometric Reasoning and Trigonometry · Geometry and Measurement

Right Angled Trigonometry

Mastering the ratios of sine, cosine, and tangent to find unknown sides and angles in right angled triangles.

Key Questions

  1. 1Why do the ratios of side lengths in a right angled triangle remain constant for a given angle regardless of the triangle size?
  2. 2How do we decide which trigonometric ratio is most efficient for a specific problem?
  3. 3In what ways does trigonometry allow us to measure objects that are physically inaccessible?

ACARA Content Descriptions

AC9M10M01
Year: Year 10
Subject: Mathematics
Unit: Geometric Reasoning and Trigonometry
Period: Geometry and Measurement

Suggested Methodologies

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