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  2. Surface-area-to-volume ratio - Wikipedia

    en.wikipedia.org/wiki/Surface-area-to-volume_ratio

    Balls exist in any dimension and are generically called n-balls or hyperballs, where n is the number of dimensions. The same reasoning can be generalized to n-balls using the general equations for volume and surface area, which are:

  3. Rectangle - Wikipedia

    en.wikipedia.org/wiki/Rectangle

    In Euclidean plane geometry, a rectangle is a rectilinear convex polygon or a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°); or a parallelogram containing a right angle. A rectangle with four sides of equal length is a square.

  4. Aspect ratio - Wikipedia

    en.wikipedia.org/wiki/Aspect_ratio

    For example, the aspect ratio of a rectangle is the ratio of its longer side to its shorter side—the ratio of width to height, [1] [2] when the rectangle is oriented as a "landscape". The aspect ratio is most often expressed as two integer numbers separated by a colon (x:y), less commonly as a simple or decimal fraction. The values x and y do ...

  5. Aviation and Transportation Security Act - Wikipedia

    en.wikipedia.org/wiki/Aviation_and...

    The Act created the Transportation Security Administration (TSA). [1] However, with the passage of the Homeland Security Act in 2002, the TSA was later transferred to the Department of Homeland Security. [2] The legislation (S. 1447) was sponsored by Democratic Senator Fritz Hollings from South Carolina and co-sponsored by 30 other senators.

  6. Transportation Security Administration - Wikipedia

    en.wikipedia.org/wiki/Transportation_Security...

    TSA's seal when first established under the Department of Transportation Historical TSA design used on TSO uniform patch, coin, and Year of Service pins. The TSA was created largely in response to the terrorist attacks of September 11, 2001, which revealed weaknesses in existing airport security procedures. [6]

  7. Geometric Shapes (Unicode block) - Wikipedia

    en.wikipedia.org/wiki/Geometric_Shapes_(Unicode...

    Geometric Shapes; Range: U+25A0..U+25FF (96 code points) Plane: BMP: Scripts: Common: Symbol sets: Control code graphics Geometric shapes: Assigned: 96 code points

  8. Stadium (geometry) - Wikipedia

    en.wikipedia.org/wiki/Stadium_(geometry)

    A stadium is a two-dimensional geometric shape constructed of a rectangle with semicircles at a pair of opposite sides. [1] The same shape is known also as a pill shape, [2] discorectangle, [3] obround, [4] [5] or sausage body. [6] The shape is based on a stadium, a place used for athletics and horse racing tracks.

  9. Registered Traveler - Wikipedia

    en.wikipedia.org/wiki/Registered_Traveler

    Verified Identity Pass must submit an independent audit of its systems to the TSA before the company can register new customers. [6] On August 4, 2008, TSA Suspends Verified Identity Pass, Inc. Clear Registered Traveler Enrollment. On August 5, 2008, the laptop was found in the same room where it went missing.