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  2. Katha (unit) - Wikipedia

    en.wikipedia.org/wiki/Katha_(unit)

    One Katha is equal to 1,361.25 ft 2 or 151.25 square yard or 126.46 square metre. One Bigha in UP can range from 5 to 20 Katha. In Western UP, 1 Bigha can be 5.0 Katha (756.25 square yard) or 6.6667 Katha (1,008.33 square yard). In Eastern UP, 1 Bigha is 20 Katha (3,025 square yard). 1 Katha or 1 Biswa = 20 Dhur or 20 Biswansi; 1 Dhur = 1 Biswansi

  3. Basal area - Wikipedia

    en.wikipedia.org/wiki/Basal_area

    Basal area is the cross-sectional area of trees at breast height (1.3m or 4.5 ft above ground). It is a common way to describe stand density. In forest management, basal area usually refers to merchantable timber and is given on a per hectare or per acre basis. If one cut down all the merchantable trees on an acre at 4.5 feet (1.4 m) off the ...

  4. Orders of magnitude (area) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(area)

    1 square zeptometre (zm 2) 1 zm 2 10 −36: 1 square attometre (am 2) 1 am 2 10 −30: 1 square femtometre (fm 2) 1 fm 2 10 −29 66.52 fm 2: Thomson cross-section of the electron [4] 10 −28 100 fm 2: 1 barn, roughly the cross-sectional area of a uranium nucleus [5] 10 −24: 1 square picometre (pm 2) 1 pm 2 10 −20: 1 square angstrom (Å 2 ...

  5. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    1.5 m – height of an okapi; 1.63 m – (5 feet 4 inches) (or 64 inches) – height of average U.S. female human as of 2002 (source: U.S. Centers for Disease Control and Prevention (CDC)) 1.75 m – (5 feet 8 inches) – height of average U.S. male human as of 2002 (source: U.S. CDC as per female above) 2.4 m – wingspan of a mute swan

  6. List of mountains by elevation - Wikipedia

    en.wikipedia.org/wiki/List_of_mountains_by_elevation

    This is an incomplete list of notable mountains on Earth, sorted by elevation in metres above sea level.For a complete list of mountains over 7200 m high, with at least 500 m of prominence, see List of highest mountains.

  7. Bigha - Wikipedia

    en.wikipedia.org/wiki/Bigha

    In Western UP, 1 bigha is usually equal to 5 biswa i.e. 6,806.25 square feet (632.321 m 2) or 756.25 square yard. In some districts it can be 6.6667 biswa i.e. 9,075 square feet (843.1 m 2) or 1,008.33 square yard. In Eastern UP, 1 bigha is equal to 20 biswa. Hence 1 Bigha in Purvanchal is 27,225 square feet (2,529.3 m 2) or 3,025 square yard.

  8. Diameter at breast height - Wikipedia

    en.wikipedia.org/wiki/Diameter_at_breast_height

    [4] [5] In some countries, such as Australia, New Zealand, Burma, India, Malaysia, and South Africa, breast height diameter has historically been measured at a height of 1.4 m (4 ft 7 in), but because of much active research into allometrics that are being applied to trees and forests, the convention of 1.3 m (4.3 ft) is more appropriate. [6]

  9. Truncated order-5 square tiling - Wikipedia

    en.wikipedia.org/wiki/Truncated_order-5_square...

    In geometry, the truncated order-5 square tiling is a uniform tiling of the hyperbolic plane. It has Schläfli symbol of t 0,1 {4,5}. Related polyhedra and tiling