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The Legend of Chief SohCahToa

The Legend of Chief SohCahToa. A young brave of the Lumbee Tribe, frustrated by his inability to understand the geometric constructions of his tribe's battle dress…. …kicked out in anger against a stone and crushed his big toe.

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The Legend of Chief SohCahToa

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  1. The Legend of Chief SohCahToa

  2. A young brave of the Lumbee Tribe, frustrated by his inability to understand the geometric constructions of his tribe's battle dress…

  3. …kicked out in anger against a stone and crushed his big toe.

  4. Fortunately, the young brave learned from this experience, and began to use study and concentration to solve his problems rather than violence.

  5. This was especially effective in his study of math,

  6. And he went on to become the wisest man of his tribe.

  7. According to legend the brave’s father, the tribal chief, dies.

  8. Following tradition, the wise brave was to take his father’s place.

  9. As custom dictates, the tribe’s Shaman gave the new Chief a name that reflected his special nature

  10. A name that reminded them of his great discoveries and of the event which changed his life.

  11. A name that took into account that he was troubled throughout his life by the problematic foot,

  12. And that he was constantly at the edge of the river, soaking his feet in the cooling waters.

  13. The high priest declared that the wise brave shall be called

  14. The high priest declared that the wise brave shall be called Chief SohCahToa.

  15. Chief SohCahToa studied many aspects of trigonometry

  16. And even today we remember many trigonometric functions by his name.

  17. Trigonometric Functions SINE COSINE TANGENT

  18. Trigonometric Functions SINE COSINE TANGENT

  19. SINE Prounounced “sign”

  20. COSINE Prounounced “co-sign”

  21. TANGENT Prounounced “tan-gent”

  22. Greek Letter q Prounounced “theta” Represents an unknown angle

  23. hypotenuse opposite adjacent

  24. We need a way to remember all of these ratios…

  25. SOHCAHTOA Sin Opp Hyp Cos Adj Hyp Tan Opp Adj

  26. Finding sin, cos, and tan

  27. SOHCAHTOA 10 8 6

  28. Find the sine, the cosine, and the tangent of angle A. Give a fraction and decimal answer (round to 4 places). 10.8 9 A 6

  29. Find the values of the three trigonometric functions of . ? Pythagorean Theorem: 5 4 (3)² + (4)² = c² 5 = c 3

  30. Find the sine, the cosine, and the tangent of angle A Give a fraction and decimal answer (round to 4 decimal places). B 24.5 8.2 A 23.1

  31. So be sure to remember The Legend of Chief SohCahToa.

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