How to find cos

cos θ = adjacent / hypotenuse

You can use acrosyms to remember this

This one is so silly you will definately remember it

Some.  (Sin).            

Old.      (Opposite)

Hippie.  (Hypotenuse)

 Sin=Opposite/Hypotenuse

Caught.  (Cosine).       

Another.  (Ajacent)

Hippie     (Hypotenuse)

Cosine=Ajacent/Hypotenuse

Trippin

On

Acid

Tangent= Opposite/Ajacent

\(cos\theta= \boxed{adjacent/hypotenuse}\)

I remember sin, cos, and tan by SOHCAHTOA

sin= opposite/hypotnuse

cos=adjacent/hypotnuse

tan= opposite/adjacent