cosθ question

(1) Angle x ( instead of using theta) is the angle in a triangle that you want to calculate, it is you ( or the question) to decide which angle in a triangle is x.
(2) Once x is decided, the sides on both sides of x will be either the adjacent side or the hypotenuse.
(3) The remaining side ( or the side opposite to angle x) is called the opposite side.
So side and angle are not decided by its magnitude, it is decided by you.

Opposite side of θ need not to be the shortest side in a triangle.
Angle θ need not to be the smallest angle in a triangle.
Try θ= 60.



2009-05-04 05:10:05 補充：
Try θ= 60°