Exercises 4.4, page 128

  1. 1. sin A = 0.868 ,  cos A = 0.496 ,  tan A = 1.75 ,  sin B = 0.496 ,  cos B = 0.868 ,  tan B = 0.571

  2. 3.

    A triangle with sides of 3 inches and 6 inches, and an angle of 60 degrees between them.

  3. 5.

    A right triangle with a leg of 3 centimeters adjacent to the right angle, and a hypotenuse of 5 centimeters opposite the right angle.

  4. 7. B = 12.2 °  ,  b = 1450 ,  c = 6850

  5. 9. A = 25.8 °  ,  B = 64.2 °  ,  b = 311

  6. 11. A = 57.9 °  ,  a = 202 ,  b = 126

  7. 13. A = 84.7 °  ,  a = 877 ,  B = 5.3 ° 

  8. 15. a = 30.21 ,  B = 57.90 °  ,  b = 48.16

  9. 17. A = 52.15 °  ,  B = 37.85 °  ,  c = 71.85

  10. 19. A = 52.5 °  ,  b = 0.661 ,  c = 1.09

  11. 21. A = 15.82 °  ,  a = 0.5239 ,  c = 1.922

  12. 23. A = 65.886 °  ,  B = 24.114 °  ,  c = 648.46

  13. 25. a = 0.75835 ,  c = 14.612 ,  ...

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