Question 414365
In any {{{right}}}{{{ angled}}}{{{ triangle}}}, for any angle:

The {{{sine}}} of the angle = the length of the {{{opposite}}} side {{{o}}}
                                   the length of the {{{hypotenuse}}}

The {{{cosine}}} of the angle = the length of the {{{adjacent}}} side {{{a}}}
                                      the length of the {{{hypotenuse}}} {{{h}}}

The {{{tangent}}} of the angle = the length of the {{{opposite}}} side
                                      the length of the {{{adjacent}}} side {{{o}}}


So in shorthand notation:



sin={{{o/h}}}  cos={{{a/h}}}  tan={{{o/a}}}


often remembered by: {{{soh}}} {{{cah}}} {{{toa}}}