Geometric Reasoning and Trigonometry · Geometry and Measurement

Pythagoras in 2D and 3D

Extending the theorem of Pythagoras to find lengths in three dimensional space.

Key Questions

  1. 1How can a two dimensional theorem be adapted to find the diagonal of a room?
  2. 2Why is the square on the hypotenuse always equal to the sum of the squares on the other sides?
  3. 3What are the limitations of using Pythagoras theorem in non right angled triangles?

National Curriculum Attainment Targets

KS3: Mathematics - Geometry and Measures
Year: Year 9
Subject: Mathematics
Unit: Geometric Reasoning and Trigonometry
Period: Geometry and Measurement

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