they changed it because they were to lazy to walk up steps so they changed it to flat sided because they wanted to get their motorized wheel chairs up the side
Smooth [sided] pyramid Step [sided] pyramid Bent pyramid
Ziggurat
I believe that they were changed because of the pharoah's
Mesopotamians built ziggurats which were structures that resembled step pyramids. These step pyramids could have up to seven levels or steps and had rectangular bases. The ziggurat was a temple used to honor their gods.
The step pyramids were like practice pyramids. They were getting the engineering down and the "how to". I doubt that without them they would have been able to engineer the Great Pyramid.
Smooth [sided] pyramid Step [sided] pyramid Bent pyramid
The design developed from, a pyramid shaped pile of dirt, to the step pyramid, to the bent pyramid, to the pyramids of gaze.
Step pyramids served as royal tombs in ancient Egypt, with the most famous example being the Step Pyramid of Djoser in Saqqara. These pyramids were characterized by stacked layers or steps, which symbolized the sun's rays reaching towards the heavens. Step pyramids represented an early form of pyramid construction before the more familiar smooth-sided pyramids, such as those at Giza, were developed.
The three main pyramids at Giza are - The Pyramid of Khufu also known as The Great Pyramid of Giza and the Pyramid of Cheops [his Greek name], the Pyramid of Khafre and the Pyramid of Menkaure. Three of the main types of Egyptian pyramids are - Smooth [sided] pyramid Step [sided] pyramid Bent pyramid
Ziggurat
Step Pyramids have an opening or entrance gate just like regular pyramids.
I believe that they were changed because of the pharoah's
they were step pyramids built out of stone
Mesopotamians built ziggurats which were structures that resembled step pyramids. These step pyramids could have up to seven levels or steps and had rectangular bases. The ziggurat was a temple used to honor their gods.
Step pyramids are similar in shape to smooth pyramids. They are made by gradually inclined steps that taper in to reach the top center stone.
A step pyramid is a pyramid with steps on the side.
Imhotep.