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← 3.2 Area

Surface area of a triangular prism

Mathematics · Grade 8 · about 40 minutes

Five faces, two triangles and three rectangles, found from the net and added rather than memorised.

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  • 7 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
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Other lessons in this sub-strand

  1. The area of a circle
  2. Working with the area of a circle
  3. The area of a sector
  4. Surface area of a cube
  5. Surface area of a cuboid
  6. Surface area of a cylinder
  7. Surface area of a triangular prism
  8. The area of an irregular shape
  9. Choosing the right area method
  10. Area in real life