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The Great Pyramid of Giza [a] is the largest Egyptian pyramid.It served as the tomb of pharaoh Khufu, who ruled during the Fourth Dynasty of the Old Kingdom.Built c. 2600 BC, [3] over a period of about 26 years, [4] the pyramid is the oldest of the Seven Wonders of the Ancient World, and the only wonder that has remained largely intact.
That's astounding. With their 'rudimentary tools', the pyramid builders of ancient Egypt were about as accurate as we are today with 20th-century technology. [45] Average core blocks of the Great Pyramid weigh about 1.5 tons each, and the granite blocks used to roof the burial chambers are estimated to weigh up to 80 tons each.
The pyramid has a base length of 215.5 m (706 ft) or 411 cubits and rises up to a height of 136.4 metres (448 ft) or 274 cubits. It is made of limestone blocks weighing more than 2 tons each. The slope of the pyramid rises at a 53° 08' angle, steeper than its neighbor, the pyramid of Khufu , which has an angle of 51° 50' 24".
With a height of 1.40 metres (4.6 ft) and base length 1.85 metres (6.1 ft), it weighs around 4.5 tonnes (9,900 lb). The bottom edges are undercut to keep the block in position atop the pyramid. [ 2 ]
They were able to tow a 2-ton block on a sledge across wood tracks with 12 to 20 men. This effort used 6 to 10 men per ton. The pyramid was 54 cubic meters total estimated weight 135 tons. It was built out of 186 stones. The average weight of each stone was almost 1,500 lb (680 kg) (.75 tons).
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Pyramid (Pharaoh) Reign Field Height Pyramid of Djoser c. 2670 BCE Saqqara: 62 meters (203 feet) Red Pyramid c. 2612–2589 BCE Dahshur: 104 meters (341 feet) Meidum Pyramid c. 2612–2589 BCE Meidum: 65 meters (213 feet) (ruined) Would have been 91.65 meters (301 feet) [citation needed] or 175 Egyptian Royal cubits.
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