Using Trig Ratios to Find Missing Sides

Which is the correct ratio for the sine ratio?

• $\frac{adjacent\ }{hypotenuse}$

• $\frac{opposite\ }{hypotenuse}$

• $\frac{adjacent\ }{opposite\ }$

• $\frac{opposite\ }{adjacent\ }$

Which is the correct ratio for the cosine ratio?

• $\frac{adjacent\ }{hypotenuse}$

• $\frac{opposite\ }{hypotenuse}$

• $\frac{adjacent\ }{opposite\ }$

• $\frac{opposite\ }{adjacent\ }$

Which is the correct ratio for the tangent ratio?

• $\frac{adjacent\ }{hypotenuse}$

• $\frac{opposite\ }{hypotenuse}$

• $\frac{adjacent\ }{opposite\ }$

• $\frac{opposite\ }{adjacent\ }$

What side is opposite  $\angle$ J?  

• 9

• 40

• 41

• none

What side is adjacent to  $\angle$ J?  

• 9

• 40

• 41

• none

What side is the hypotenuse of the triangle? 

• 9

• 40

• 41

• none

What is a common way to remember the definitions of the trig ratios?

• SAH COH TOA

• SOA COH TOA

• SOH CAH TOA

• ADJ OPP HYP

What is  $\cos A$  ?

•  $\frac{29}{20}$  

•  $\frac{21}{29}$  

•  $\frac{20}{29}$  

•  $\frac{21}{20}$  

What is  $\tan A$  ?

•  $\frac{29}{20}$  

•  $\frac{21}{29}$  

•  $\frac{20}{29}$  

•  $\frac{21}{20}$  

What is  $\tan\ C$  ?

•  $\frac{20}{21}$  

•  $\frac{21}{29}$  

•  $\frac{20}{29}$  

•  $\frac{21}{20}$