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← 2.2 Computer Aided Drawing

Drawing circles, arcs and polygons

Building and Construction · Grade 10 · about 40 minutes

CIRCLE, ARC and POLYGON for columns, tanks, arches and manholes, still as plane shapes at exact millimetres.

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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. Computer Aided Drawing (CAD)
  2. CAD versus drawing by hand
  3. CAD software for building drawing
  4. Setting up CAD units, scale and limits
  5. Grid, snap and coordinates
  6. CAD layers
  7. Drawing lines and rectangles in CAD
  8. Drawing circles, arcs and polygons
  9. Editing CAD drawings
  10. Dimensioning and text in CAD
  11. Printing and plotting CAD drawings
  12. CAD for Kenyan site drawings