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Year 8 · Term 3

8.14 Triangles

Learning Objectives

Triangles

  1. 1. Label triangles using three capital letters for the vertices.
  2. 2. Name angles using a capital letter with a hat (e.g. ABĈ).
  3. 3. Name sides using a single lowercase letter or two capital letters for the endpoints.
  4. 4. Understand and apply the triangle inequality (any two sides must sum to more than the third).
  5. 5. Identify uniqueness conditions for constructing a triangle (SSS, SAS, ASA, RHS).
  6. 6. Classify triangles by sides (scalene, isosceles, equilateral) and by angles (acute, right, obtuse).