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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 ...
Cross sectional area of a trapezoidal open channel, red highlights wetted perimeter Change of wetted perimeter (blue) of trapezoidal canal as a function of angle ψ.. The wetted perimeter is the perimeter of the cross sectional area that is "wet". [1]
The Penampang District (Malay: Daerah Penampang) is an administrative district in the Malaysian state of Sabah, part of the West Coast Division which includes the districts of Kota Belud, Kota Kinabalu, Papar, Penampang, Putatan, Ranau and Tuaran.
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