trigonometry

Mathematics

1.

b. c. d.

Find the smallest negative angle coterminal with a.

. Use radian measure.

____ 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.

and is in Quadrant IV, find

____ 4.

The reference angle of 171° is

1. 71°
2. 81°
3. 9°
4. 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

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