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2 d shapes_presentation

2d shapes properties.

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2 d shapes_presentation

  1. 1. A curved line A straight line
  2. 2. 2D SHAPES  Two dimensional shapes.  They are flat.  They have no volume
  3. 3. 2d SHAPES POLYGONS S REGULAR NON POLYGONS IRREGULAR
  4. 4. POLYGONS All sides are Straight
  5. 5. NON - POLYGONS Not all sides are straight At least, one side is curved
  6. 6. REGULAR POLYGONS  All sides are the same length  All angles are the same
  7. 7. 3 SIDES - Regular TRIANGLE - equilateral 4 SIDES – Regular QUADRILATERAL square
  8. 8. 5 SIDES – Regular 6 SIDES – Regular 7 SIDES – Regular 8 SIDES – Regular 9 SIDES – Regular 10 SIDES – Regular 11 SIDES – Regular 12 SIDES – Regular PENTAGON HEXAGON HEPTAGON OCTAGON NONAGON DECAGON HENDECAGON DODECAGON
  9. 9. PENTAGON HEXAGON HEPTAGON OCTAGON NONAGON DECAGON HENDECAGON DODECAGON REGULAR POLYGONS SORTED BY NUMER OF SIDES
  10. 10. IRREGULAR POLYGONS  All sides are not the same length  All angles are not the same
  11. 11. 3 SIDES - Irregular TRIANGLE Isosceles Right angled 2 sides = 1 right angle Scalene all sides not =
  12. 12. 4 SIDES – Irregular QUADRILATERAL
  13. 13. 5 SIDES – Irregular PENTAGON 6 SIDES – Irregular HEXAGON 7 SIDES – Irregular HEPTAGON 8 SIDES – Irregular OCTAGON 9 SIDES – Irregular NONAGON 10 SIDES – Irregular DECAGON 11 SIDES – Irregular HENDECAGON 12 SIDES – Irregular DODECAGON
  14. 14. PENTAGON HEXAGON HEPTAGON OCTAGON NONAGON DECAGON HENDECAGON DODECAGON IRREGULAR POLYGONS SORTED BY NUMER OF SIDES
  15. 15. NON - POLYGONS Not all sides are straight At least, one side is curved
  16. 16. CIRCLE SEMICIRCLE OVAL ELLIPSE

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