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Trinagle, using Sin to solve

Hi,

I was confused about how to use Sine, Cosine, and Tangent a bit.

So I thought of using like a regular triangle like this.

Attachment 24738

So I want to find what sin Ө=

But I'm kind of confused

Sin is opposite over hypotenuse (Using SOHCAHTOA)

So the opposite has no numbers, and the hypotenuse is 1

So then I used cosine Ө = adjecent over hypotenuse, which is x/1, which got me no where.

Can someone explain to me on how I could find what sin Ө equals.

Re: Trinagle, using Sin to solve