The Egyptians Ancient Egypt Egypt and the Nile The Old Kingdom Building the Pyramids The Middle Kingdom Pharaohs The New Kingdom Religion Preparing for the Next World Towns and Cities Sculpture and Painting Craftsmen Writing Children and Education Farmers Trade and Ships Family Life Food and Drink Games and Hunting	Checking Measurements Stonemasons used right angles and plumb lines to make sure the side of the stone blocks were straight. Such tools are still used today.   Previous: Back Book: The Egyptians Section: Ancient Egypt Chapter: Building the Pyramids