The answer to this question is entasis.
Entasis is a design principle in architecture where in a convex curve was applied to a surface which also serves a strength to the construction and it also gives an optical illusion to it. Egyptian pyramids use this design principle.
Answer:
Ancient Greeks made many influential contributions to western civilization such as in the areas of philosophy, art and architecture, math and science
Explanation:
I am going to answer with the 7 principles instead. balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.Hope this helps:)