google can't answer that? lets collaborate...cone as a simple machine...

Hello Debela Deme Jima

As per my knowledge I am trying to answer your query. Shear Center is defined as the point in the cross section where the bending and torsion are decoupled. That is if the lateral or transverse load pass through this point it produces only bending without twisting. The point corresponding to the geometric center of an object is known as the centroid. Depending on the shape of the object, one, two, or three coordinates may be needed in order to define its exact position in space. If a shape possesses an axis of symmetry, then its centroid will always be located on that axis.

Good luck

PVR