Geometric Reasoning and Trigonometry · Geometry and Measurement

Trigonometry in 3D Contexts

Applying 2D trigonometric skills to solve problems involving heights and distances in three dimensional models.

Key Questions

  1. 1How can we decompose a 3D object into a series of 2D triangles to simplify a problem?
  2. 2What are the challenges of representing 3D spatial relationships on a 2D piece of paper?
  3. 3How does the angle of elevation change as an observer moves closer to an object?

ACARA Content Descriptions

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

Suggested Methodologies

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