How do you know what formula to use when solving angeometry angle question. For example: Jessica sits on top of a150ft tower. Suddenly she sees a boat from where she sits. If theangle of depression of the boat is 6 degrees, how far is the boatfrom the base of the tower?
sin 6 degrees= .10
cos 6 degrees =.99
tan 6 degrees =.11
the book used tan 6 degrees to solve, looking for theadjacent side as variable \"x\".
Why couldn't we use COS? but my other real question isagain how would you know which formula to use regarding questionslike this and questions not like this.
