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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

    These set squares come in two usual forms, both right triangles: one with 90-45-45 degree angles, the other with 30-60-90 degree angles. Combining the two forms by placing the hypotenuses together will also yield 15° and 75° angles.

  4. Ailles rectangle - Wikipedia

    en.wikipedia.org/wiki/Ailles_rectangle

    An alternative construction (also by Ailles) places a 30°–60°–90° triangle in the middle with sidelengths of , , and . Its legs are each the hypotenuse of a 45°–45°–90° triangle, one with legs of length 1 {\displaystyle 1} and one with legs of length 3 {\displaystyle {\sqrt {3}}} .

  5. Right triangle - Wikipedia

    en.wikipedia.org/wiki/Right_triangle

    A right triangle ABC with its right angle at C, hypotenuse c, and legs a and b,. A right triangle or right-angled triangle, sometimes called an orthogonal triangle or rectangular triangle, is a triangle in which two sides are perpendicular, forming a right angle (1 ⁄ 4 turn or 90 degrees).

  6. Polyform - Wikipedia

    en.wikipedia.org/wiki/Polyform

    right isosceles (45°-45°-90°) triangle: Kisquadrille: polyabolo: Tangrams: 4 rhombus: Rhombille: polyrhomb: 4 Joined Half-Squares Polyare: 12 Joined Half-Cubes Polybe: 5 Cairo Pentagon: Polycairo: 12 Cube: Polycube: Soma cube, Bedlam cube, Diabolical cube, Slothouber–Graatsma puzzle, Conway puzzle: 4 Joined Half-Hexagons Polyhe: 4 60°-90 ...

  7. 60/30/10 Budgeting Rule: This Could Be the Key to Budgeting ...

    www.aol.com/60-30-10-budgeting-rule-180140263.html

    The 50/30/20 budgeting rule has long been considered the gold standard for budgeting. This rule of thumb entails dedicating 50% of your income for needs, 30% for wants and 20% for savings. However ...

  8. Mnemonics in trigonometry - Wikipedia

    en.wikipedia.org/wiki/Mnemonics_in_trigonometry

    Sines and cosines of common angles 0°, 30°, 45°, 60° and 90° follow the pattern with n = 0 ... Draw three triangles pointing down, touching at a single point.

  9. The 90-10 Rule is a Better Way to Trim Your Nails - AOL

    www.aol.com/lifestyle/90-10-rule-better-way...

    I once read an interview where Kim Kardashian mentioned that she always makes time for a manicure because even if everything else is in disarray, there’s something about having well-groomed ...