Topic 7 - Trigonometric Functions

Select all the possible measures for the angle shown.

An angle has a reference angle measuring 35° and its terminal side lies in Quadrant IV. What are possible positive and negative measures for the angle?

• 325°, −35°

• 35°, −145°

• 35°, −325°

• 145°, −35°

Find the measure of an angle that is positive and less than 360° in standard position for each reference angle.

68° in quadrant II: ​ (a)   ​ °

75° in quadrant IV: ​ (b)   °

22° in quadrant III: ​ (c)   °

• 112
• 285
• 202
• 45
• 150
• 270

• 30
• 150
• 60
• 225
• 300

• 4

What is sin θ if cos θ = 12/13 and θ is in Quadrant IV?

• sin θ = 12/13

• sin θ = -5/13

• sin θ = 5/13

• sin θ = -12/13

Select all the correct statements.

Using a two-way radio, Melissa can talk to anyone within an 8-mile radius of her location. Oscar is 30° west of south of Melissa’s location. What is Oscar’s exact location, relative to Melissa’s location, at the greatest distance where they can talk using two-way radios?

(​ (a)   , ​ (b)   )

• -4
• 3
• -2

Select all the correct statements.