1.   Change -120° to radian measure in terms of .
    A. B. -
    C. - D.
    Hint

  2.   Change radians to degree measure.
    A. -145° B. 145°
    C. 135° D. -135°
    Hint

  3.   Given a central angle of 105°, find the length of its intercepted arc in a circle of radius 6 centimeters. Round to the nearest tenth.
    A. 5.2 cm B. 11.0 cm
    C. 10.4 cm D. 22.0 cm
    Hint

  4.   The diameter of a circle is 18 inches. If a central angle measures 64°, find the length of the intercepted arc.
    A. about 10.1 in. B. about 18.2 in.
    C. about 20.1 in. D. about 14.6 in.
    Hint

  5.   A sector has an area of 14.5 square meters. The radius of the circle is 4 meters. Find the radian measure of the central angle to the nearest tenth.
    A. 14.6 radians B. 1.8 radians
    C. 7.3 radians D. 3.6 radians
    Hint