Trig functions Test review

Which of the following is the reference angle of an angle that measures $240\degree$  ?

•  $30\degree$  

•  $60\degree$  

•  $150\degree$  

•  $180\degree$  

Tags

CCSS.HSF.TF.A.1

Which of the following is the equation of the unit circle?

• $x+y=1$

• $y=x^2+1$

• $x^2+y^2=1$

• $y=x+1$

Tags

CCSS.HSF.TF.A.2

Tags

CCSS.HSG.SRT.C.7

Tags

CCSS.HSG.SRT.C.6

The length of which line segment is equivalent to

 $\cos\theta$  ?

• TO

• TS

• OR

• OS

Tags

CCSS.HSF.TF.A.2

The length of which line segment is equivalent to

 $\sin\theta$  ?

• TO

• TS

• OR

• OS

Tags

CCSS.HSF.TF.A.2

Which line segment has a length of one?

• TO

• TS

• SR

• OS