PLEASE HELPPPP i dont know what to do next :(

Enter the trigonometric equation (sin, tan, or cos) you would use to find x in the following right triangles. Do not solve the equations.
https://media.glynlyon.com/g_geo_2012/11/groupi33.gif
the link of the pic is above^

Question

PLEASE HELPPPP i dont know what to do next :(

Enter the trigonometric equation (sin, tan, or cos) you would use to find x in the following right triangles. Do not solve the equations.
https://media.glynlyon.com/g_geo_2012/11/groupi33.gif
the link of the pic is above^

anonymous · Answer

|dw:1357612276957:dw|
that is what i got and it says its wrong

anonymous · Answer

You find x

anonymous · Answer

Don't use cosine. You're meant to use sine. SOHCAHTOA. Pronounced Soccertoe'r. Use that in future questions. S=Sine O= Opposite H= Hypotenuse C= Cosine A= Adjacent H=Hypotenuse T=Tan O= Opposite A= Adjacent.

anonymous · Answer

So when you you have the the term x opposite the angle and then a number on the hypotenuse, that gives a clear indication that you should use sine. SOH meaning Opposite and hypotenuse correspond with Sine. 
$$\sin 70= x/8$$

anonymous · Answer

$$x=8\sin70$$ Multiply both sides by 8.
Now solve for x.