1. The problem statement, all variables and given/known data http://prntscr.com/fcbm8 Find the centroid - All dimensions are in mm 2. Relevant equations xbar = (A1X1+A2X2) / (A1+A2) Similarly for Ybar I assume 3. The attempt at a solution I got the y co-ordinate to be 20.428mm, and would assume that the x coordinate would be 5mm. Is this right?