A centroid is an object's geometric center. For an object of uniform composition, its centroid is also its center of mass. Often the centroid of a complex composite body is found by$,$ first, cutting the body into regular shaped segments, and then by calculating the weighted average of the segments' centroids.An object is made from a uniform piece of sheet metal. The object has dimensions of aa $=1\mathrm{.}55$ ftft $,$ where aa is the diameter of the semi$-$circle,bb $=3\mathrm{.}12$ ftft $,$ and cc $=2\mathrm{.}05$ ftft $.$ A hole with diameter dd $=0\mathrm{.}600$ ftft is centered at $(1\mathrm{.}18,0\mathrm{.}775)$