1. The problem statement, all variables and given/known data I attached the question as a picture to this thread 2. Relevant equations M=Fd 3. The attempt at a solution I was taught that the moment produced by two equal but opposite forces is the magnitude of one force multiplied by the distance between the two forces. I used Pythagoras to solve for the distances between each of the couples and found sqrt32 and sqrt8 to be these distances. Thus M1= 150*sqrt32 M2=200*sqrt8 and the resultant moment =M1-M2 =283Nm [clockwise] This is not the answer, the method the answer key used was breaking up the couples into x and y. I don't understand why my method does not work as well.