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Java Games: Flashcards, matching, concentration, and word search. |
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Sin-Cos-Tan Basics
NOTE WELL: USE TRIANGLE ABC ON THE BOTTOM OF p.28 IN THE BOOK. Basics of identifying and working with sine, cosine, and tangent ratios.
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| A | B |
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| basic idea of sin (in words) | opposite/hypotenuse |
| basic idea of cos (in words) | adjacent/hytpotenuse |
| basic idea of tan (in words) | opposite/adjacent |
| symbol form of sin | o/h |
| symbol form of cos | a/h |
| symbol form of tan | o/a |
| sin B (smallest ∆) | h/4.9 |
| cos B (smallest ∆) | x/4.9 |
| tan B (smallest ∆) | h/x |
| sin B (largest ∆) | b/10 |
| cos B (largest ∆) | 4.9/10 |
| tan B (largest ∆) | b/4.9 |
| sin C (medium ∆) | h/b |
| cos C (medium ∆) | (10-x)/b |
| tan C (medium ∆) | h/(10-x) |
| sin B (largest ∆) | b/10 |
| cos B (largest ∆) | 4.9/10 |
| tan B (largest ∆) | b/4.9 |
| tan C (largest ∆) | 4.9/b |
| length of segment BC | (10-x)+x = 10 |
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Mounds View High School |
| St. Paul, MN |
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