A curved beam is loaded with three forces.

a$)$ Determine the moment created by the forces around point A$.$

b$)$ Determine the moment created by the forces around point B$.$

All measurements in the figure are given in millimeters.

Given:

$=35$

$=30$

$F1[N]=400$

$F2[N]=75$

$F3[N]=500$

$a[mm]=550$

$b[mm]=70$