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2. Special right triangle - Wikipedia

   en.wikipedia.org/wiki/Special_right_triangle

   Set square shaped as 45° - 45° - 90° triangle The side lengths of a 45° - 45° - 90° triangle 45° - 45° - 90° right triangle of hypotenuse length 1.. In plane geometry, dividing a square along its diagonal results in two isosceles right triangles, each with one right angle (90°, ⁠ π / 2 ⁠ radians) and two other congruent angles each measuring half of a right angle (45°, or ...

3. Set square - Wikipedia

   en.wikipedia.org/wiki/Set_square

   Variants in larger sizes, with fixed or detachable handles, with or without bevelled edges (facets), and with or without ink nodules or embossed labels exist as well. Some variants have extra markings at angles of 7° and 42° (138° and 173°) in addition to the normal 45° and 90° markings to ease dimetric axonometry per ISO 5456-3, [ 8 ...

4. List of scale model sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_scale_model_sizes

   The dominant European size for die-cast ship models, most comprehensive range. 1:1200: 0.01 0.254 mm: Ship models: A British and American size for ship and harbour models. Airfix used to produce in this scale. 1:1000: 0.305 mm This is a scale used in Germany for pre-finished airliner models. Herpa and Hogan Wings produces several models in this ...

5. Speed square - Wikipedia

   en.wikipedia.org/wiki/Speed_square

   They are also made in several sizes such as 4, 6, 7, 8 and 12 inch, and 25 cm. Embedded degree gradations on the tool eliminate the need for trigonometric calculations and allow for lines to be more easily made. The Speed Square tool is an isosceles right triangle with a ruler on one equal side and a fence on the other.

6. Reuleaux triangle - Wikipedia

   en.wikipedia.org/wiki/Reuleaux_triangle

   The boundary of a Reuleaux triangle is a constant width curve based on an equilateral triangle. All points on a side are equidistant from the opposite vertex. A Reuleaux triangle is a curved triangle with constant width, the simplest and best known curve of constant width other than the circle. [1]

7. Why Experts Say Knowing Your Face Shape Could Change Your ...

   www.aol.com/why-experts-knowing-face-shape...

   If your face has more length than width, with the widest part of the face being the cheekbones and the forehead and jawline having similar (but slightly narrower) measurements, you most likely ...