Khufu was the first pharaoh who build a pyramid at Giza. The entire project took about 23 years to complete, 2,300,000 building blocks, weighing an average of 2.5 tons each (Although some weigh as much as 16 tons) were used to build the great pyramid. The length of each side of the pyramid at the base is 755 feet (230.4 m). They rise at an angle of 51 52′ to a height, originally, of 481 feet (147 m) but nowadays 451 feet (138 m).....T_J
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