It's not significant, and triangles aren't "the basic building block of the cosmos."
yes for building pyramids
For building pyramids and land measurements
A great example of how ancient Egyptians used geometry is in the building of pyramids.
Geometry was used in ancient Egypt for building the great pyramids, however the ancient Greeks were the ones who actually began to study it in detail.
Geometry was used in wall or cave paintings they made and found inn everyday objects.
It is an understanding of geometry because when the Egyptian slaves and/or laborers were building the pyramids they needed to make sure that all of the sides were the exact same size and that would require math or geometry to make a 3D figure like a pyramid.
yes
no
geometry
Egyptians used geometry to build all their large monuments, including the pyramids. They wrote down geometry problems on paper and solved them.
Exactly in the same way as we use geometry today for their constructions of pyramids and land measurements.
in ancient egypt, pharoes were placed in great pyramids, which served as a tumb. these pyramids were magnifacent, and there were no mistakes made on them. the archatects eventually learned geometry to have the right proportions for the pyramids, and other mathimatical needs. also, they learned some in science.