1.   Solve . Round measures of sides to the nearest tenth and measures of angles to the nearest degree.
   
    A. A = 72°, b = 4.1, c = 1.3
    B. A = 72°, b = 3.9, c = 4.1
    C. A = 72°, b = 1.3, c = 4.1
    D. A = 72°, b = 1.3, c = 3.9
    Hint

  2.   A school flagpole casts a 16-foot shadow on the lawn. A teacher stood at the shadow's edge and measured the angle of elevation to the top of the pole at 42°. How tall is the pole?
    A. 5.6 ft B. 17.8 ft
    C. 14.4 ft D. 12 ft
    Hint

  3.   If is an angle in standard position whose terminal side lies in quadrant III and find the exact value of the tan .
    A. B.
    C. D.
    Hint

  4.   State the amplitude and the period for y = 2 cos .
    A. amplitude = -2,
period = 4
B. amplitude = -2,
period = 180°
    C. amplitude = 2,
period = 4
D. amplitude = 2 ,
period =
    Hint

  5.   Write the equation of the sine function if the amplitude is 5 and the period is 360°.
    A. y = -5 sin 5 B. y = 5 sin
    C. y = sin 5 D. y = - sin 5
    Hint

  6.   Find the value of sin 87° to the nearest thousandth.
    A. 19.08 B. 0.052
    C. -0.822 D. 0.999
    Hint

  7.   Libby looked out of her airplane window at a 32° angle with respect to the horizontal, and saw the Sears Tower building in Chicago. If the airplane had an altitude of 4000 feet, how far away were they from being directly over Chicago?
    A. 6401 ft. B. 2499 ft.
    C. 9900 ft. D. 1616 ft.
    Hint

  8.   Suppose Johnny was standing at the origin. Then, he walked northwest at an angle of 60° with respect to west. If the distance that he traveled is 16 units, what is his present position?
    A. B.
    C. D.
    Hint

  9.   Find sin 330° by drawing a reference angle.
    A. B.
    C. D. 1
    Hint

  10.   Find sin 450° by drawing a reference angle.
    A. B.
    C. D. 1
    Hint