You can put this solution on YOUR website! For a triangle with an angle , they are calculated this way:
Sine Function:
Cosine Function:
Tangent Function:
How to remember? Think ""! It works like this: ...
......
...
so, sometimes you are given an angle and side, then formulas above will help you to calculate unknown side or angle
Example: what are the sine, cosine and tangent of ° ?
The classic ° triangle has a hypotenuse of length , an opposite side of length and an adjacent side of :
Now we know the lengths, we can calculate the functions:
Sine
Cosine
Tangent