For the area shown in the figure below, OAC is the area of a sector with center at C and radius OC=AC=4*sqrt(2)~5.657 units. This is part 1. Part 2 is the triangle COD. Part 3 is the triangle CAB....

For the area shown in the figure below, OAC is the area of a sector with center at C and radius OC=AC=4*sqrt(2)~5.657 units. This is part 1. Part 2 is the triangle COD. Part 3 is the triangle CAB. Determine, using the method of composite areas, the second moments of area of part 1 about the y-axis [units^4].

Determine, using the method of composite areas, the second moments of area of part 2 about the y-axis [units^4]