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Law of Cosines Part 1

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Law of Cosines Part 1

  1. 1. Triangles in Real Life<br />
  2. 2. Triangles in Real Life<br />
  3. 3. Triangles in Real Life<br />
  4. 4. Triangles in Real Life<br />
  5. 5. Today’s Objectives<br />Review right triangle trigonometry and triangle postulates<br />
  6. 6. Today’s Objectives<br />Review right triangle trigonometry and triangle postulates<br />Use right triangle trigonometry to develop the law of cosines<br />
  7. 7. Today’s Objectives<br />Review right triangle trigonometry and triangle postulates<br />Use right triangle trigonometry to develop the law of cosines<br />Use the law of cosines to solve problems<br />
  8. 8. Review<br />A<br />B<br />C<br />
  9. 9. Review<br />A<br />c = 10 cm<br />B<br />θ = ?<br />C<br />a = 8 cm<br />
  10. 10. Review<br />A<br />c = 10 cm<br />b = ?<br />B<br />C<br />a = 8 cm<br />
  11. 11. Go to Chat on the Main page.<br />Please pause for discussion.<br />A<br />c = 10 cm<br />b = ?<br />B<br />θ = ?<br />C<br />a = 8 cm<br />

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