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  2. Square pyramid - Wikipedia

    en.wikipedia.org/wiki/Square_pyramid

    The slant height of a right square pyramid is defined as the height of one of its isosceles triangles. It can be obtained via the Pythagorean theorem : s = b 2 − l 2 4 , {\displaystyle s={\sqrt {b^{2}-{\frac {l^{2}}{4}}}},} where l {\displaystyle l} is the length of the triangle's base, also one of the square's edges, and b {\displaystyle b ...

  3. Pyramid (geometry) - Wikipedia

    en.wikipedia.org/wiki/Pyramid_(geometry)

    The pyramid height is defined as the length of the line segment between the apex and its orthogonal projection on the base. Given that is the base's area and is the height of a pyramid, the volume of a pyramid is: [25] =.

  4. Pyramid of Khafre - Wikipedia

    en.wikipedia.org/wiki/Pyramid_of_Khafre

    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".

  5. Louvre Pyramid - Wikipedia

    en.wikipedia.org/wiki/Louvre_Pyramid

    The pyramid structure was initially designed by Pei in late 1983 and presented to the public in early 1984. Constructed entirely with glass segments and metal poles, it reaches a height of 21.6 metres (71 ft). [3] Its square base has sides of 34 metres (112 ft) and a base surface area of 1,000 square metres (11,000 sq ft). [4]

  6. Apothem - Wikipedia

    en.wikipedia.org/wiki/Apothem

    This formula can be derived by partitioning the n-sided polygon into n congruent isosceles triangles, and then noting that the apothem is the height of each triangle, and that the area of a triangle equals half the base times the height. The following formulations are all equivalent:

  7. Frustum - Wikipedia

    en.wikipedia.org/wiki/Frustum

    The height of a frustum is the perpendicular distance between the planes of the two bases. Cones and pyramids can be viewed as degenerate ... the slant height ...

  8. List of tallest pyramids - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest_pyramids

    Height Height Year Location Notes Great Pyramid of Giza: 138.5 454 2560 BC Giza, Egypt: Pyramid of Khafre: 136.4 448 2570 BC Giza, Egypt: Red Pyramid: 105 344 c. 2600 BC Cairo, Egypt: Bent Pyramid: 104.71 344 c. 2600 BC Cairo, Egypt: Toniná pyramid 74 243 Chiapas, Mexico: Much of height includes hilltop. La Danta: 72 236 c. 400BC El Petén ...

  9. Great Pyramid of Giza - Wikipedia

    en.wikipedia.org/wiki/Great_Pyramid_of_Giza

    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.