Trigonometry Test Review Solutions

1.
a. \frac{\sqrt{2}}{2}

b. \frac{\sqrt{3}}{3}

c. -1

d. -2

e. -1

2. 45

3. \frac{-13}{12}

4. unknown angle is 43 degrees, unknown sides are 18 feet and 13 feet

5. 39

6. The fire is 182.3 miles from station A and 128.7 miles from station B.

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more triangle trigonometry questions

  1. Calculate the area of a regular octagon inscribed in a unit circle.
  2. In quadrilateral ABCD, AB=3, BC=4, CD=5, and DA=6. The length of diagonal BD is 7. Calculate the length of the other diagonal.
  3. From the top of an observation post that is 90 meters high, a ranger sights a campsite at an angle of depression of 10°. Turning in a different direction, the ranger sees another campsite at an angle of depression of 13°. The angle between these two sight lines is 35°. How far apart are the campsites?