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The Sine & Cosine Ratios

The Sine & Cosine Ratios. Tutorial 15b. B. Hypotenuse. Leg opposite A. A. C. Leg Adjacent to A. Sine & Cosine. The tangent ratio, as you’ve seen, involves both legs of a right triangle. The Sin and Cosine ratios involve one leg and the hypotenuse. G. 17. 8. T. R. 15. Example 1.

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The Sine & Cosine Ratios

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  1. The Sine & Cosine Ratios Tutorial 15b

  2. B Hypotenuse Leg opposite A A C Leg Adjacent to A Sine & Cosine • The tangent ratio, as you’ve seen, involves both legs of a right triangle. The Sin and Cosine ratios involve one leg and the hypotenuse.

  3. G 17 8 T R 15 Example 1 • Refer to GRT at the left. Find each ratio. • a. sin T b. cos T c. sin G d. cos G Check your Answers!

  4. G 17 8 T R 15 Example 1 • Refer to GRT at the left. Find each ratio. • a. sin T b. cos T c. sin G d. cos G

  5. Hot-air Balloon Horizontal line 38 ° Angle of elevation 38° Horizontal line Angle of Depression and Elevation • Suppose a person in a hot-air balloon sees a person at an angle of 38 degrees below a horizontal line. This angle is an angle of depression. At the same time, the person on the ground sees the hot-air balloon at an angle of 38 degrees above a horizontal line. This angle is an angle of elevation.

  6. The End Time to move on to the assignment or the next lesson

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