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JSS2: BASIC TECHNOLOGY - 2ND TERM

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  1. Geometric Construction | Week 1
    5 Topics
    |
    1 Quiz
  2. Construction of Angles & Circles | Week 2
    6 Topics
    |
    1 Quiz
  3. Construction of Triangles | Week 3
    5 Topics
    |
    1 Quiz
  4. Quadrilaterals | Week 4
    2 Topics
    |
    1 Quiz
  5. Construction of Quadrilaterals | Week 5
    3 Topics
    |
    1 Quiz
  6. Polygons | Week 6
    3 Topics
    |
    1 Quiz
  7. Plane Figures | Week 7
    3 Topics
    |
    1 Quiz
  8. Enlargement And Reduction of Plane Figures | Week 8
    2 Topics
  9. WoodWork Machines | Week 9
    2 Topics
    |
    1 Quiz
  10. Care & Maintenance of WoodWork Machines | Week 10
    1 Topic
    |
    1 Quiz
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Topic Content:

  • Types of Polygons
decagon
Decagon – 10 sides.

The tables below show a list of polygons indicating the number of sides and their images.

Types of PolygonsNumber of Sides
Pentagon5
Hexagon6
Heptagon7
Octagon8
Nonagon9
Decagon10
Hendecagon11
Dodecagon12
NameSidesShape
Triangle (or Trigon)3regular triangle
Quadrilateral (or Tetragon)4regular quadrilateral
Pentagon5pentagon regular
Hexagon6hexagon regular
Heptagon (or Septagon)7heptagon refular
Octagon8octagon regular
Nonagon (or Enneagon)9nonagon regular
Decagon10regular decagon
Hendecagon (or Undecagon)11regular hendecagon
Dodecagon12regular dodecagon