Trigonometric Ratios and the Unit Circle

What are the negative and positive coterminal angles of -165°?

• 435°, -545°

• 185°, -305°

• 195°, -525°

• 125°, -185°

Which is a coterminal angle to the angle shown?

• 613

• 73

• -117

• 17

Which sketch is -295°?

• A

• B

• C

• D

What is the reference angle?

• 163

• 73

• 27

• 107

What is the value of cosine at 135

• 0

• 1/2

• √2 /2

• -√2 /2

sin π/4

• √2∕2

• 1/2

• √3/2

• 0

Which quadrant does the following angle terminate in?

• I

• II

• III

• IV

Find the length of side y.

• 22.32 cm

• 36.5 cm

• 76.34 cm

• 87.76 cm

In which quadrant would you find an angle measuring -740°

• 1

• 2

• 3

• 4

Which of the following is closest to the measure of the angle shown?

• 30º

• 40º

• 395º

• 440º