trigonometry

1.

b. c. d.

Find the smallest negative angle coterminal with a.

. Use radian measure.

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____ 2.

____ 3.

b. c. d.

Find the smallest negative angle coterminal with –160°. Use degree measure.

  1. –700°
  2. –520°
  3. –880°
  4. –340°

Given a.

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____ 4.

The reference angle of 171° is

  1. 71°
  2. 81°
  3. 19°

____ 5.

____ 6.

a. b. c. d.

Given a right triangle where side a = 12 and side b = 16, what does side c = ? Give the result properly rounded off.

  1. 4
  2. 11
  3. 20
  4. 28

Round off 18436 to two significant digits.

  1. 18000
  2. 18400
  3. 20000
  4. 18440