1 / 35

Trigonometry

Trigonometry. Just the Basics March 7, 2012. Remember Special Triangles. What about other Right Triangles?. Trigonometry. If you know a side and an angle of a right triangle, then you can find out a lot about the triangle. This is how trigonometry was invented.

marek
Download Presentation

Trigonometry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Trigonometry Just the Basics March 7, 2012

  2. Remember Special Triangles

  3. What about other Right Triangles?

  4. Trigonometry • If you know a side and an angle of a right triangle, then you can find out a lot about the triangle. This is how trigonometry was invented. • Trigonometry used to be a separate class in high school. Now we learn part of trig in Geometry, some more in Algebra 2, and more in Pre-Calculus.

  5. Be happy you have Calculators!

  6. Trig has 3 basic units • Focuses on different ratios to help you find missing parts of triangles. • These ratios are known as: Sine, Cosine, Tangent

  7. Ways to remember SohCah Toa

  8. Ways to remember Some Old Horse Caught Another Horse Taking Oats Away

  9. Ways to remember Some Old Hippie Caught Another Hippie Trippin’ On Acid

  10. Trig has 3 basic units Sin A= Cos A= Tan A= Sin B= Cos B= Tan B=

  11. Find each ratio Sin A= Cos A= Tan A= Sin B= Cos B= Tan B= B A C

  12. Find each ratio Sin X= Cos X= Tan X= Sin Y= Cos Y= Tan Y= X Z Y

  13. Find each ratio Sin M= Cos N= Tan M= Sin N= Cos M= Tan N= N Q M

  14. Find each ratio Sin A= Cos A= Tan A= Sin B= Cos B= Tan B= A B C

  15. Trigonometry March 8, 2012

  16. We often know what the Angles are.

  17. Some people are EVIL! • Check to fix your calculator. • Should say “deg” for degrees. If is doesn’t you are likely to get all the questions wrong.

  18. Solve for x. • Is it sine, cosine, or tangent? • Set up the equation • Solve • Round

  19. Solve for x.

  20. Solve for x.

  21. Solve for x.

  22. Solve for X.

  23. Solve for X.

  24. Solve for X.

  25. Solve for X.

  26. Solve for X.

  27. Solve for X.

  28. Solve for X.

  29. Solve for X.

  30. When you need to find the angle. • Sin x°= • 30° • Set up the equation • Hit the “2nd” key and type sin then the fraction (or decimal some calculators are tempermental about fractions in the trig functions) • Make sure to close the parentheses

  31. Finding the Angle

  32. Finding the Angle

  33. Finding the Angle

  34. Finding the Angle

  35. Finding the Angle

More Related