Short Answer

Three Technological Innovations or Inventions of the Ancient Egyptians
The three inventions are the wheel and plow, sailboats, and calendars. The wheel and plow allowed people to grow food so they can store it. Wooden sailboats were constructed to increase transport ability on the Nile. The calendar was made to make a sense of the seasonal cycles


Three Important features of the Egyptian Pyramids
Pyramids were massive stone tombs, originally covered in marble but the marble was later stripped off during the Muslim Conquest. The Great Sphinx of Giza was a pyramid that was built from 2555 to 2532 B.C. It is a recumbent lion with a human's head. The pyramid is the oldest monument statue in the world.