<P> Significant advances in ancient Egypt during the dynastic period include astronomy , mathematics , and medicine . Their geometry was a necessary outgrowth of surveying to preserve the layout and ownership of farmland , which was flooded annually by the Nile river . The 3 , 4 , 5 right triangle and other rules of thumb served to represent rectilinear structures , and the post and lintel architecture of Egypt . Egypt also was a center of alchemy research for much of the western world . </P>
what are three things other than the nile that are related to ancient egypt
surveying alchemy The 3 , 4 , 5 right triangle