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  2. San Jacinto Monument - Wikipedia

    en.wikipedia.org/wiki/San_Jacinto_Monument

    At the point where the shaft rises from the base, it is 48 feet (15 m) square (2,304 square feet (214.0 m 2)). The shaft narrows to 30 feet (9.1 m) square (900 square feet (84 m 2)) at the observation deck. [9] At the top of the monument is a 220-ton, 34-foot (10 m) high star, representing the Lone Star of Texas. [8] A 1,750-by-200-foot (533 by ...

  3. Square metre - Wikipedia

    en.wikipedia.org/wiki/Square_metre

    Comparison of 1 square metre with some Imperial and metric units of area. The square metre (international spelling as used by the International Bureau of Weights and Measures) or square meter (American spelling) is the unit of area in the International System of Units (SI) with symbol m 2. [1]

  4. American football field - Wikipedia

    en.wikipedia.org/wiki/American_football_field

    The total area of the field is 57,600 sq ft or 5,350 m 2. There is a goal centered on each end line, with a crossbar 10 feet (3.0 m) above the ground and goalposts 18 feet 6 inches (5.64 m) apart (in college and the NFL) extending at least 35 feet (11 m) above the crossbar. Between the goal lines, additional lines span the width of the field at ...

  5. Orders of magnitude (length) - Wikipedia

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

    Leonardo da Vinci drew the Vitruvian Man within a square of side 1.83 m (6 ft 0 in) and a circle about 1.2 m (3 ft 11 in) in radius. To help compare different orders of magnitude, this section lists lengths between one meter and ten meters. Light, in vacuum, travels 1 meter in 1 ⁄ 299,792,458, or 3.3356409519815E-9 of a second.

  6. List of city squares by size - Wikipedia

    en.wikipedia.org/wiki/List_of_city_squares_by_size

    200 by 100 m (660 by 330 ft) Roman Square: Podgorica Montenegro: 20,000 220,000 [48] Grand'Place: Arras France: 20,000 220,000: 200 by 100 m (660 by 330 ft) Anna Square: Chennai India: 20,000 220,000: Built in memory of former Chief Minister of Tamil Nadu, C. N. Annadurai (1967–69) 1996: Pershing Square: Los Angeles United States: 20,000 ...

  7. Orders of magnitude (area) - Wikipedia

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

    10 −48: 1 square yoctometre (ym 2) 1 ym 2 10 −43 100,000 ym 2: 1 femtobarn [3] 10 −42: 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 ...

  8. Foot (unit) - Wikipedia

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

    The Greek foot (πούς, pous) had a length of ⁠ 1 / 600 ⁠ of a stadion, [12] one stadion being about 181.2 m (594 ft); [13] therefore a foot was, at the time, about 302 mm (11.9 in). Its exact size varied from city to city and could range between 270 mm (10.6 in) and 350 mm (13.8 in), but lengths used for temple construction appear to ...

  9. Rai, ngan, and tarang wa - Wikipedia

    en.wikipedia.org/wiki/Rai,_ngan,_and_tarang_wa

    The rai, [a] ngan, [b] and tarang wa or square wa [c] are customary Thai units of area, used in the measurement of land. They are defined as exactly 1,600, 400, and 4 square metres, respectively (17,222, 4,306, and 43 sq ft). [1] The tarang wa (square wa, tarang meaning 'grid') is derived from the area of a square with sides of 1 wa (the Thai ...