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  2. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    For crossing wires that are insulated from one another, a small semi-circle symbol is commonly used to show one wire "jumping over" the other wire [3] [7] [8] (similar to how jumper wires are used). A common, hybrid style of drawing combines the T-junction crossovers with "dot" connections and the wire "jump" semi-circle symbols for insulated ...

  3. Graphometer - Wikipedia

    en.wikipedia.org/wiki/Graphometer

    For convenience, sometimes another half-circle from 180 to 360 degrees may be graduated in another line on the limb. [ 1 ] The form was introduced in Philippe Danfrie 's Déclaration de l’usage du graphomètre (Paris, 1597) [ 2 ] [ 3 ] and the term graphometer was popular with French geodesists .

  4. Semicircle - Wikipedia

    en.wikipedia.org/wiki/Semicircle

    PR is the diameter of a circle centered on O; its radius AO is the arithmetic mean of a and b. Using the geometric mean theorem, triangle PGR's altitude GQ is the geometric mean. For any ratio a:b, AO ≥ GQ. A semicircle can be used to construct the arithmetic and geometric means of two lengths using straight-edge and compass.

  5. Technical drawing tool - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing_tool

    The compass is used to draw arcs and circles. A drawing board was used to hold the drawing media in place; later boards included drafting machines that sped the layout of straight lines and angles. Tools such as templates and lettering guides assisted in the drawing of repetitive elements such as circles, ellipses, schematic symbols and text.

  6. Engineering drawing - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing

    (For example, a sketch of a hole that is clearly not round still accurately defines the part as having a true round hole, as long as the label says "10mm DIA", because the "DIA" implicitly but objectively tells the user that the skewed drawn circle is a symbol representing a perfect circle.)

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Geometry template - Wikipedia

    en.wikipedia.org/wiki/Geometry_template

    A geometry template is a piece of clear plastic with cut-out shapes for use in mathematics and other subjects in primary school through secondary school. It also has various measurements on its sides to be used like a ruler .

  9. Geometric Shapes (Unicode block) - Wikipedia

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

    The following Unicode-related documents record the purpose and process of defining specific characters in the Geometric Shapes block: Version Final code points [ a ]