What is geometric motif. Please I need an answer immediately. PLEASE

In 1907, the retrospective on the work of 19th century post-impressionist georges seurat influenced the development of cubism in a radical way through his painting titled, “sunday afternoon on the island of la grande jatte.” ? ?

Which style of polyphony uses a borrowed chant and arranges several new melodies and texts above and unrelated to the chant?

Which statement best describe a difference between the romantic artist delacroix's liberty leading the people and neoclassical artist davids oath of the horatii