Trig Ratios & the Unit Circle

Is this a right triangle? 

• No,  $8^2+6^2\ne10^2$  

• Yes, because it looks like it

• Yes,  $8^2+6^2=10^2$  

Tags

CCSS.8.G.B.8

Find the measure of the missing side

• 136.21

• 11.7

• 10.3

• 105.79

Tags

CCSS.8.G.B.7

• $\sin Z=\frac{24}{40}$

• $\sin Z=\frac{32}{40}$

• $\sin Z=\frac{40}{24}$

• $\sin Z=\frac{24}{32}$

Tags

CCSS.HSG.SRT.C.6

What is the 

 $\cos\theta$ ?

•  $\cos\theta=\frac{12}{35}$  

•  $\cos\theta=\frac{37}{12}$  

•  $\cos\theta=\frac{35}{37}$  

•  $\cos\theta=\frac{12}{37}$  

Tags

CCSS.HSG.SRT.C.6

What is  $\cot\theta$  ?

•  $\cot\theta=\frac{35}{12}$  

•  $\cot\theta=\frac{12}{35}$  

•  $\cot\theta=\frac{12}{37}$  

•  $\cot\theta=\frac{35}{37}$  

Tags

CCSS.HSF.TF.A.2

What is the measure of angle  $\theta$ 

•  $40.1\degree$  

•  $28.1\degree$  

•  $0.5\degree$  

•  $1.1\degree$  

Tags

CCSS.HSG.SRT.C.8

Convert $\frac{\pi}{4}$  to degrees

•  $45\degree$  

•  $30\degree$  

•  $120\degree$  

•  $60\degree$  

Tags

CCSS.HSF.TF.A.1

Convert $\frac{5\pi}{6}$  to degrees

•  $45\degree$  

•  $30\degree$  

•  $120\degree$  

•  $150\degree$  

Tags

CCSS.HSF.TF.A.1

Convert $250\degree$  to radians

•  $\frac{18\pi}{25}$  

•  $\frac{3\pi}{2}$  

•  $\frac{4\pi}{3}$  

•  $\frac{25\pi}{18}$  

Tags

CCSS.HSF.TF.A.1

According to the unit circle, which quadrant would you find an angle measuring $187\degree$  ?

• Quadrant 1

• Quadrant 2

• Quadrant 3

• Quadrant 4

Tags

CCSS.HSF.TF.A.2