1. $ABC$ is a triangular lamina, in which side $AC$ has a length of $70cm$ and angles $ABCandBAC$ are $40^{\circ}and53^{\circ}$ respectively.  A force of 12 N is applied to point $C$, with the line of action of the force making an angle of $30^{\circ}$ with side $BC$ as shown in the diagram below:

Calculate the moment of the force about each of the points $A,BandC$.