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  2. Ptolemy's theorem - Wikipedia

    en.wikipedia.org/wiki/Ptolemy's_theorem

    Ptolemy's theorem is a relation among these lengths in a cyclic quadrilateral. = + In Euclidean geometry, Ptolemy's theorem is a relation between the four sides and two diagonals of a cyclic quadrilateral (a quadrilateral whose vertices lie on a common circle).

  3. Shape of the universe - Wikipedia

    en.wikipedia.org/wiki/Shape_of_the_universe

    Global structure covers the geometry and the topology of the whole universe—both the observable universe and beyond. While the local geometry does not determine the global geometry completely, it does limit the possibilities, particularly a geometry of a constant curvature.

  4. In the 70's, the DATAR gives funds Matra Transport to launch the development of ARAMIS, a personal rapid transit project. [4] In the 80's, the DATAR launches a Mission photographique, whose goal is to know better the French territory by taking thousands of photographs. [5] Most of those photographs are stored in the Bibliothèque nationale de ...

  5. Pura Ulun Danu Batur - Wikipedia

    en.wikipedia.org/wiki/Pura_Ulun_Danu_Batur

    Pura Ulun Danu Batur (also known as "Pura Batur" or "Pura Ulun Danu") is a Hindu Balinese temple located on the island of Bali, Indonesia.As one of the Pura Kahyangan Jagat, Pura Ulun Danu Batur is one of the most important temples in Bali which acted as the maintainer of harmony and stability of the entire island.

  6. Mach number - Wikipedia

    en.wikipedia.org/wiki/Mach_number

    The Mach number (M or Ma), often only Mach, (/ m ɑː k /; German:) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound.

  7. B. N. Datar - Wikipedia

    en.wikipedia.org/wiki/B._N._Datar

    Balwantrao Nageshrao Datar, known as B. N. Datar (13 August 1894 – 13 February 1963) was an Indian educationist, politician and Union government minister. [ 1 ] Early life and education

  8. Atar, Padang Ganting - Wikipedia

    en.wikipedia.org/wiki/Atar,_Padang_Ganting

    Atar is located approximately 23 km (10 mi) away from the regency capital at Batusangkar, and is one of two nagari in Padang Ganting. It is the larger nagari, although less populated, making up 50.25 km 2 (19.40 sq mi) out of 83.5 km 2 (32.2 sq mi) area of Padang Ganting.

  9. Datar–Mathews method for real option valuation - Wikipedia

    en.wikipedia.org/wiki/Datar–Mathews_method_for...

    The Datar–Mathews Method [1] (DM Method) [2] is a method for real options valuation.The method provides an easy way to determine the real option value of a project simply by using the average of positive outcomes for the project.