Answer:
[tex]sinA=\frac{opposite}{hypotenuse}[/tex]
Step-by-step explanation:
Soh-cah-toa is a great way to remember:
[tex]sin=\frac{opposite}{hypotenuse}\\ cin=\frac{adjacent}{hypotenuse}\\ tan=\frac{opposite}{adjacent}[/tex]
You just remember the first letters : sine= opposite/hypotenuse , for example.
