<P> The pyramid remained the tallest man - made structure in the world for over 3,800 years , unsurpassed until the 160 - metre - tall ( 520 ft ) spire of Lincoln Cathedral was completed c. 1300 . The accuracy of the pyramid 's workmanship is such that the four sides of the base have an average error of only 58 millimetres in length . The base is horizontal and flat to within ± 15 mm ( 0.6 in ) . The sides of the square base are closely aligned to the four cardinal compass points ( within four minutes of arc ) based on true north , not magnetic north , and the finished base was squared to a mean corner error of only 12 seconds of arc . </P>
<P> The pyramid remained the tallest man - made structure in the world for over 3,800 years , unsurpassed until the 160 - metre - tall ( 520 ft ) spire of Lincoln Cathedral was completed c. 1300 . The accuracy of the pyramid 's workmanship is such that the four sides of the base have an average error of only 58 millimetres in length . The base is horizontal and flat to within ± 15 mm ( 0.6 in ) . The sides of the square base are closely aligned to the four cardinal compass points ( within four minutes of arc ) based on true north , not magnetic north , and the finished base was squared to a mean corner error of only 12 seconds of arc . </P>
how many sides does the great pyramid of egypt have
how many sides does the great pyramid of egypt have
four
four