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TRIGONOMETRY

TRIGONOMETRY. CHAPTER 2. 2.2 Using the Tangent Ratio to Calculate Lengths. You knew the values of two legs and you calculated the value of an acute angle. Previously:. 2.2 Using the Tangent Ratio to Calculate Lengths.

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TRIGONOMETRY

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  1. TRIGONOMETRY CHAPTER 2

  2. 2.2 Using the Tangent Ratio to Calculate Lengths

  3. You knew the values of two legs and you calculatedthe value of an acute angle Previously: 2.2 Using the Tangent Ratio to Calculate Lengths

  4. You will know the value of one leg and an acute angle you will calculate the value of the other leg In this section: 2.2 Using the Tangent Ratio to Calculate Lengths

  5. In right ∆ABC, AB is the side opposite∠C and BC is the side adjacent to ∠C. Determine the length of AB to the nearest tenth of a centimetre.

  6. In right ∆ABC, AB is the side opposite∠C and BC is the side adjacent to ∠C. • Use the tangent ratio to write an equation. • Solve this equation for AB. • AB is approximately 5.8 cm long. Determine the length of AB to the nearest tenth of a centimetre.

  7. In right ∆DEF, DE is opposite∠F and EF is adjacentto ∠F. • Solve the equation for EF EF is approximately 9.6 cm long. Determine the length of EF to the nearest tenth of a centimetre.

  8. POWERPOINT PRACTICE PROBLEM Determine the length of VX to the nearest tenth of a centimetre.

  9. POWERPOINT PRACTICE PROBLEM At a horizontal distance of 200 m from the base of an observation tower, the angle between the ground and the line of sight to the top of the tower is 8°. How high is the tower to the nearest metre? The diagram is not drawn to scale.

  10. HOMEWORK • PAGES: 82 - 83 • PROBLEMS:3(a,b), 4 (a, b), 6, 8, 10,

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