Physics Rotational Torque Help?

Question

Calculate the net torque (magnitude and direction) on the beam in Figure P8.3 about the following axes.
http://www.webassign.net/sercp/p8-3.gif
figure 8.3 is above

(a) an axis through O, perpendicular to the page
(b) an axis through C, perpendicular to the page

Answer 1

About the O-axis:
2m * 25N * sin(60)
4m * 10N * -sin(20)
About the C-axis:
2m * 10N * -sin(20)
-2m * 30N * -sin(45)
For each axis, calculate the two torques and sum them. A net + torque is counterclockwise.