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2. Ruler - Wikipedia

   en.wikipedia.org/wiki/Ruler

   A variety of rulers A 2 m (6 ft 6 + 3 ⁄ 4 in) carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]

3. C-Thru Ruler - Wikipedia

   en.wikipedia.org/wiki/C-Thru_Ruler

   The C-Thru Ruler Company is an American maker of measuring devices and specialized products for drafting, designing and drawing. The company was formed in 1939 in Bloomfield, Connecticut , [ 1 ] by Jennie R. Zachs, a schoolteacher, who saw the need for transparent measuring tools such as rulers , triangles , curves and protractors .

4. Square (tool) - Wikipedia

   en.wikipedia.org/wiki/Square_(tool)

   Square (tool) A square is a tool used for marking and referencing a 90° angle, though mitre squares are used for 45° angles. Squares see common use in woodworking, metalworking, construction and technical drawing. [ 1 ] Some squares incorporate a scale for measuring distances (a ruler) or for calculating angles.

5. Angle trisection - Wikipedia

   en.wikipedia.org/wiki/Angle_trisection

   The example shows trisection of any angle θ > ⁠3π/4⁠ by a ruler with length equal to the radius of the circle, giving trisected angle φ = ⁠θ/3⁠. Angle trisection is a classical problem of straightedge and compass construction of ancient Greek mathematics. It concerns construction of an angle equal to one third of a given arbitrary ...

6. Scale ruler - Wikipedia

   en.wikipedia.org/wiki/Scale_ruler

   Scale ruler. A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale. In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.

7. Play Just Words Online for Free - AOL.com

   www.aol.com/games/play/masque-publishing/just-words

   Play Just Words free online! By Masque Publishing. Advertisement. all. board. card. casino. puzzle. If you love Scrabble, you'll love the wonderful word game fun of Just Words.