Proofs Without Words

Steve Phelps, 2/2/2015

Here is a GeoGebraBook of Proofs Without Words for the Pythagorean Theorem.


  • 1. Proof Without Words
  • 2. Proof Without Words
  • 3. Proof Without Words
  • 4. Proof Without Words
  • 5. Proof Without Words
  • 6. Proof Without Words
  • 7. Proof Without Words
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  • 19. Proof Without Words
  • 20. Proof Without Words
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  • 28. Proof Without Words
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  • 30. Proof Without Words
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  • 33. Proof Without Words
  • 34. Proof Without Words
  • 35. Proof Without Words
  • 36. Proof Without Words
  • 37. Proof Without Words
  • 38. Proof Without Words
  • 39. Proof Without Words
  • 40. Pythagorean Theorem for Similar Shapes
  • 41. Proof Without Words
  • 42. Proof Without Words
  • 43. Proof Without Words
  • 44. Proof Without Words: Hunger's Law of Cosine Dissection
  • 45. Law of Cosines Proof Without Words
  • 46. Proof Without Words: 3-4-5 Right Triangle
  • 47. Loyd's Squares for a 3-4-5 Triangle
  • 48. Proof Without Words
  • 49. Da Vinci's Proof Without Words
  • 50. Mamikon's Proof Without Words
  • 51. Pythagorean Proof Without Words
  • 52. Pythagorean Theorem Proof Without Words
  • 53. Pythagorean Theorem Proof Without Words
  • 54. Pythagorean Theorem Proof Without Words
  • 55. Pythagorean Theorem Proof Without Words
  • 56. Pythagorean Theorem Proof Without Words
  • 57. Proof Without Words: 45-45-90
  • 58. Sum of Three Squares is a Square

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Proof Without Words

Drag the points in the sketch below.[br]What do you notice? What does this prove? How does this prove it?
– Steve Phelps

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