Using the parallelogram law trigonometry find the angle thet

Using the parallelogram law, trigonometry find the angle theta so that the component of the 325^N force along the 1 axes is 200^N.

Solution

angle between 325N force and 1 axis is =180^o-55^o-

angle between 325N force and 1 axis is =125^o-

component of 325N force along 1 axis =200N

=>325cos(125^o-)=200

=>cos(125^o-)=200_/325

=>(125^o-)=cos^-1(200_/325)

=>(125^o-)=52^o

=>=125^o-52^o

=>=73^o