1.   Choose the angle measure represented by 4.7 rotations clockwise.
    A. 1692° B. 846°
    C. -846° D. -1692°
    Hint

  2.   Choose the angle measure represented by 5.2 rotations counterclockwise.
    A. -936 B. -1872
    C. 936 D. 1872
    Hint

  3.   If , find .
    A. B.
    C. 3 D.
    Hint

  4.   Which is an example of a cofunction relationship?
    A. sin 30° = cot 60° B. sin 30° = sin 60°
    C. sin 30° = cos 60° D. sin 30° = tan 60°
    Hint

  5.   Suppose is an angle in standard position whose terminal side
lies in Quadrant II. If , find
    A. B.
    C. D.
    Hint

  6.   The terminal side of one angle in standard position contains the point with coordinates (3, -2). The terminal side of another angle in standard position contains the point with coordinates (-3, 2). Compare the tangents of these angles.
    A. They are equal. B. One is twice the other.
    C. One does not exist. D. They are not equal.
    Hint

  7.   A regular pentagon is inscribed in a circle with diameter 20 centimeters. The apothem of a regular polygon is the measure of a line segment from the center of the polygon to the midpint of one of its sides. Find the apothem of the pentagon.
    A. about 5.30 cm B. about 11.79 cm
    C. about 18.87 cm D. about 8.09 cm
    Hint

  8.   The angle of elevation of a ladder leaning against a wall is 62°. The ladder is 40 feet long. How far is the base of the ladder from the wall?
    A. about 18.78 ft B. about 35.32 ft
    C. about 75.23 ft D. about 85.20 ft
    Hint

  9.   Solve the equation cos x = .
    A. x equals 150°, 210° or any angle
coterminal with these angles.
    B. x equals 30°, 330° or any angle
coterminal with these angles.
    C. x equals 60°, 300° or any angle
coterminal with these angles.
    D. x equals 120°, 240° or any angle
coterminal with these angles.
    Hint

  10.   If A = 39° and b = 7.2, find c.
   
    A. about 5.6 units B. about 9.3 units
    C. about 11.4 units D. about 8.9 units
    Hint

  11.   Find the area of if a = 5.2, c = 13.6, and B = 46° 30'.
   
    A. about 51.3 square units B. about 25.6 square units
    C. about 24.3 square units D. about 48.7 square units
    Hint

  12.   Find the area of if d =14.2, D = 33.6°, and E = 15.2°.
   
    A. about 46.5 square units B. about 35.9 square units
    C. about 71.9 square units D. about 62.1 square units
    Hint

  13.   Determine the number of possible solutions for , given
B = 100°, b = 7, and c = 9.
    A. two B. none
    C. one D. three
    Hint

  14.   Determine the number of possible solutions for , given
a = 7, b = 3, and A = 115°.
    A. one B. none
    C. two D. three
    Hint

  15.   In given A = 100°, b = 7 and c = 6, find a.
    A. about 8.4 B. about 6.3
    C. about 7.5 D. about 10.0
    Hint

  16.   In Hero's Formula, to find the area of a triangle, s in the formula
represents ______.
    A. the sum of any two of the three sides of the triangle B. the perimeter of the triangle
    C. the semiperimeter of the triangle D. none of these
    Hint