Open Question: Diagrams to show how you can determine centre of gravity of symmetrical and uniform....?

Open Question: Diagrams to show how you can determine centre of gravity of symmetrical and uniform....?

I must draw diagrams to show how you can determine centre of gravity of symmetrical and uniform:
1) cuboid shaped object
2) cylindrical shaped object

can anyone help me as im struggling to find sites or any images on google that are relevant to the above. Any links provided would be greatly appreciated.
Thanks


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