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  2. Spiral of Theodorus - Wikipedia

    en.wikipedia.org/wiki/Spiral_of_Theodorus

    The spiral is started with an isosceles right triangle, with each leg having unit length.Another right triangle (which is the only automedian right triangle) is formed, with one leg being the hypotenuse of the prior right triangle (with length the square root of 2) and the other leg having length of 1; the length of the hypotenuse of this second right triangle is the square root of 3.

  3. Theodorus of Cyrene - Wikipedia

    en.wikipedia.org/wiki/Theodorus_of_Cyrene

    Irrational square roots have periodic expansions. The period of the square root of 19 has length 6, which is greater than the period of the square root of any smaller number. The period of √17 has length one (so does √18; but the irrationality of √18 follows from that of √2).

  4. 17 (number) - Wikipedia

    en.wikipedia.org/wiki/17_(number)

    17 is the least for the Theodorus Spiral to complete one revolution. [23] This, in the sense of Plato , who questioned why Theodorus (his tutor) stopped at 17 {\displaystyle {\sqrt {17}}} when illustrating adjacent right triangles whose bases are units and heights are successive square roots , starting with 1 {\displaystyle 1} .

  5. Pythagorean theorem - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_theorem

    The spiral of Theodorus: A construction for line segments with lengths whose ratios are the square root of a positive integer. One of the consequences of the Pythagorean theorem is that line segments whose lengths are incommensurable (so the ratio of which is not a rational number) can be constructed using a straightedge and compass.

  6. Square root - Wikipedia

    en.wikipedia.org/wiki/Square_root

    The square root of a positive integer is the product of the roots of its prime factors, because the square root of a product is the product of the square roots of the factors. Since p 2 k = p k , {\textstyle {\sqrt {p^{2k}}}=p^{k},} only roots of those primes having an odd power in the factorization are necessary.

  7. Colorful Spiral Cookies Recipe - AOL

    homepage.aol.com/food/recipes/colorful-spiral...

    Wrap the log in plastic wrap and refrigerate until firm enough to slice, about 3 hours. Preheat the oven to 325°F. Line 2 baking sheets with parchment paper. Slice the dough into ¼-inch-thick cookies, cutting carefully and avoiding the nonpareils, and bake on parchment-lined baking sheets for 15 to 17 minutes.

  8. Pell number - Wikipedia

    en.wikipedia.org/wiki/Pell_number

    In mathematics, the Pell numbers are an infinite sequence of integers, known since ancient times, that comprise the denominators of the closest rational approximations to the square root of 2. This sequence of approximations begins ⁠ 1 / 1 ⁠ , ⁠ 3 / 2 ⁠ , ⁠ 7 / 5 ⁠ , ⁠ 17 / 12 ⁠ , and ⁠ 41 / 29 ⁠ , so the sequence of Pell ...

  9. These are the pedophile symbols you need to know to protect ...

    www.aol.com/news/2016-04-26-these-are-the...

    In March, a mother was horrified to find a pedophile symbol on a toy she bought for her daughter. Although the symbol was not intentionally placed on the toy by the company who manufactured the ...