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  2. Fold-and-cut theorem - Wikipedia

    en.wikipedia.org/wiki/Fold-and-cut_theorem

    Such shapes include polygons, which may be concave, shapes with holes, and collections of such shapes (i.e. the regions need not be connected). The corresponding problem that the theorem solves is known as the fold-and-cut problem, which asks what shapes can be obtained by the so-called fold-and-cut method. A particular instance of the problem ...

  3. Wikipedia : Historical archive/How to draw a diagram with ...

    en.wikipedia.org/wiki/Wikipedia:Historical...

    The bases of vector graphics are simple lines and shapes. Click the Autoshapes button and you will be presented with a number of possible shapes. Try a few of them out. File:Example Shape.png Notice the white little boxes at the "corners" of the shape, these are called handles and allow you to resize the shape bigger or smaller. Some shapes ...

  4. Types of press tools - Wikipedia

    en.wikipedia.org/wiki/Types_of_press_tools

    Blanking is a punching operation in which the entire periphery is cut out and the cutout portion required is known as STAMP or BLANK. When a component is produced with one single punch and die where the entire outer profile is cut in a single stroke the tool is called a blanking tool. Blanking is the operation of cutting flat shapes from sheet ...

  5. Circular segment - Wikipedia

    en.wikipedia.org/wiki/Circular_segment

    In geometry, a circular segment or disk segment (symbol: ⌓) is a region of a disk [1] which is "cut off" from the rest of the disk by a straight line. The complete line is known as a secant , and the section inside the disk as a chord .

  6. Truncation (geometry) - Wikipedia

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

    In general any polyhedron (or polytope) can also be truncated with a degree of freedom as to how deep the cut is, as shown in Conway polyhedron notation truncation operation. A special kind of truncation, usually implied, is a uniform truncation , a truncation operator applied to a regular polyhedron (or regular polytope ) which creates a ...

  7. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    A true 13×5 triangle cannot be created from the given component parts. The four figures (the yellow, red, blue and green shapes) total 32 units of area. The apparent triangles formed from the figures are 13 units wide and 5 units tall, so it appears that the area should be S = ⁠ 13×5 / 2 ⁠ = 32.5 units.

  8. LibreOffice - Wikipedia

    en.wikipedia.org/wiki/LibreOffice

    Support using slide background as shape fill for PPTX interoperability. Core / General. Added support for WebP and EMZ/WMZ images. The configuration now remembers whether recent documents were opened read-only or editable. Help pages for the ScriptForge scripting library. Filters. Support import textboxes in group shapes for DOCX filters

  9. Block Elements - Wikipedia

    en.wikipedia.org/wiki/Block_Elements

    Block Elements is a Unicode block containing square block symbols of various fill and shading. Used along with block elements are box-drawing characters, shade characters, and terminal graphic characters. These can be used for filling regions of the screen and portraying drop shadows.