Learn Basic Trigonometry Formulas for Right Triangles | Physics Class Help

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I haven't had precalc 2 yet, so I'm not too familiar with sin, cos, tan, but I need this for my physics class.

So if you guys don't mind giving me the formulas of sin, cos, and tan.. for example: Sin angle A = width/length etc. If I have a right triangle with a hypotonuse of 7, and an angle of 35 degrees, what is the angle, and the other side.
 

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Well here's a question.. how do you know which is the opposite and which is the adjacent? Let's say you are given a triangle with sides of 4, 5 and 6, and you are required to find the angles.. how do you know which method to use?
 
I was taught reading down the columns

Oscar Sally
Has

A Can
Hairy

Old Tell
A$$

Trig functions work on Right triangles. H is the hypotenuse, that is the side opposite the right angle. The other 2 angles have an Adjacent side and an Opposite side. That is the opposite and Adjacent in the trig definitions.
 
(i know this thread is a little dated, but still nice for reference :smile:)
I was taught "Some Old Horse Came A Hoppin' Through Our Alley" ,
using the first letters of each word will give you this

sin = Some Old Horse (sin = opposite/hypotenuse)
cos = Came A Hoppin' (cos = adjacent/hypotenuse)
tan = Through Our Alley (tan = opposite/adjacent)
 
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