Poligoni

leucotea


  • 1. Classifying Quadrilaterals
  • 2. Square Not Square
  • 3. Construction of a Square with Area Equal to that of a Given
  • 4. number of Triangles
  • 5. 把四邊形分類
  • 6. Regular polygon with strings
  • 7. Regular polygon with strings: All in one (advanced version)
  • 8. Regular polygon with strings
  • 9. Regular polygon with strings
  • 10. Quadrilateral Characteristics
  • 11. Octangularity
  • 12. Exterior Angles of Polygons
  • 13. puzzle
  • 14. Pole trapezu (zadanie)
  • 15. Opseg i površina četverokuta - Jagodica Bobica
  • 16. Triangoli: classificazione
  • 17. Triangoli: modificare le lunghezze dei lati
  • 18. The Diagonal Problem
  • 19. Igual perímetre i diferent àrea
  • 20. An isoperimetric problem
  • 21. Dragging test
  • 22. Poligoni equilateri ed equiangoli
  • 23. Polygon Portals
  • 24. Polygonal Portal
  • 25. Elementos de los polígonos regulares
  • 26. Pythagorean Tree
  • 27. Polígons regulars: Descomposició en triangles
  • 28. Quadrilateri
  • 29. Constructing Quadrilaterals by Four Sides (2014)
  • 30. Parallelogramma costruzione 2
  • 31. Parallelogramma costruzione 1
  • 32. périmètre pentagone (calcul mental)
  • 33. Costruzione di triangoli
  • 34. quadrature of cube
  • 35. Quiz on Drawing Quadrilaterals 繪畫四邊形：測驗
  • 36. Polygon Music (must download ggb file)
  • 37. Dissection: Triangle -> rectangle -> square
  • 38. Variety of Perimeters with Fixed Area
  • 39. Area of Parallelograms
  • 40. Six Pattern Blocks
  • 41. Pattern Blocks
  • 42. Rhombus Construction Exercise: V1
  • 43. Classifying Triangles by Angles
  • 44. Kleur de vierhoeken
  • 45. Quadrilateral "Guess Who?"
  • 46. N N-gons
  • 47. Convex quadrilaterals
  • 48. Uma Porta Escondida: Um Teorema Japonês envolvendo Quadriláteros Cíclicos
  • 49. Kissa
  • 50. Copia modificata di Star Polygon Explorer (prof. Steve Phelps)
  • 51. Ennagono stellato
  • 52. Symmetry lines
  • 53. D'octogone à octogone
  • 54. Classificació dels quadrilàters
  • 55. Parallélogrammes particuliers (conjecture des propriétés)
  • 56. Many Sided Polygon
  • 57. Quadrilateral Predictions
  • 58. Rectangle coin-coin
  • 59. Puzzle de Lewis Carroll
  • 60. Quadrilatère auto diagonales
  • 61. לוגו המרכז הארצי למורים למתמטיקה בחינוך העל יסודי - עידן טל
  • 62. Star Polygon Explorer
  • 63. Pentagons?
  • 64. Quadrilatères (propriétés)
  • 65. Animação Interativa: O Pavão de Euclides
  • 66. achthoeken - mediaan
  • 67. Perimetro del rettangolo
  • 68. Varignon's Theorem Animation
  • 69. Building Parallelograms in the Coordinate Plane (Version 1)
  • 70. Quad-Tools: the Funky Flower

1.

Classifying Quadrilaterals

A closed polygon which has 4 sides is called a quadrilateral. Try to drag the points on the polygons in this activity to illustrate the different types of quadrilaterals listed below? The top one is done for you.
1) Is a square a rectangle? Why or why not?[br][br]2) Is a square a rhombus? Why or why not?[br][br]3) Is a square a parallelogram? Why or why not?[br][br]4) Is a square a quadrilateral? Why or why not?[br][br]5) Is a square a trapezoid? Why or why not?
– GeoGebra Materials Team

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Information