constructing triangles

Geometric Triangle Construction

By the end of this unit, students will be able to:use ruler and a compass to construct equilateral triangles;use ruler and a compass to construct…
Target Age:

Lesson Overview

By the end of this unit, students will be able to:

  1. use ruler and a compass to construct equilateral triangles;
  2. use ruler and a compass to construct triangles given side lengths (SSS);
  3. use ruler, compass and protractor to construct triangles given two sides and an angle (SAS);
  4. use ruler, compass and protractor to construct triangles given two angles and a side (AAS).

Curriculum Alignment: Key Stage 3: Geometry and Measures (Review)

  • identify and construct congruent triangles, and construct similar shapes by enlargement, with and without coordinate grids
Last updated on: February 20, 2026

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