Respuesta :

Cosine is [tex] \frac{adjacent}{hypotenuse} [/tex] which applies to a right triangle. I hope that helps you.
JohnnyR
Cosine is one of the three part for trigonometry. 

You have sin, cos, and tan. 

You can easily do this by understanding SOH CAH TOA. 

Sin = OPPO. over HYPOTENUSE
Cos = ADJACENT over HYPOTENUSE
Tan = OPPO. over ADJACENT 

I hope this helps!