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  2. Marla (unit) - Wikipedia

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

    The marla is a traditional unit of area that is used in India, Pakistan and Bangladesh. The marla was standardized under British raj to be equal to the square rod, or 272.25 square feet, 30.25 square yards, or 25.2929 square metres.

  3. Measurement of land in Punjab - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_land_in_Punjab

    A killa or acre is measured rectangularly, reckoned as an area 36 karams (198 ft) x 40 karams (220 ft) (43,560 square ft). 1 /5th of a killa or acre is known as bigha 1 Karam = 5.5 feet = 1.83; or Gaj; 1 Yard or Gaj = 36 Inch = 0.91 Metre = 3 feet; 1 Sq Yard = 9 Sq Feet; To convert Sq feet to Sq Yard = Divide by 9

  4. List of unusual units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_unusual_units_of...

    The same word is used, however, for 100 cubic feet (2.83 m 3) of estimated or supplied loose material, such as sand, gravel, rubble, etc. This unit is prevalent in the construction industry in India. [20] [21] The same area is called a square in the construction industry in North America, [22] and was historically used in Australia by

  5. Equations for a falling body - Wikipedia

    en.wikipedia.org/wiki/Equations_for_a_falling_body

    Apart from the last formula, these formulas also assume that g negligibly varies with height during the fall (that is, they assume constant acceleration). The last equation is more accurate where significant changes in fractional distance from the centre of the planet during the fall cause significant changes in g. This equation occurs in many ...

  6. Equivalent radius - Wikipedia

    en.wikipedia.org/wiki/Equivalent_radius

    Diameter at breast height is the circumference of tree trunk, measured at height of 4.5 feet, divided by pi. This corresponds to the 1D mean diameter. This corresponds to the 1D mean diameter. It can be measured directly by a girthing tape .

  7. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    That is, the area of the rectangle is the length multiplied by the width. As a special case, as l = w in the case of a square, the area of a square with side length s is given by the formula: [1] [2] A = s 2 (square). The formula for the area of a rectangle follows directly from the basic properties of area, and is sometimes taken as a ...

  8. 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

  9. Surface area - Wikipedia

    en.wikipedia.org/wiki/Surface_area

    A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...