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  2. 45 (number) - Wikipedia

    en.wikipedia.org/wiki/45_(number)

    45 as the difference of two nonzero squares (in orange) 45 is an odd number and a Størmer number . 45 degrees is half of a right angle. It is also the smallest positive number that can be expressed as the difference of two nonzero squares in more than two ways: 7 2 − 2 2 {\displaystyle 7^{2}-2^{2}} , 9 2 − 6 2 {\displaystyle 9^{2}-6^{2 ...

  3. 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 ...

  4. Triangular number - Wikipedia

    en.wikipedia.org/wiki/Triangular_number

    Triangular numbers are a type of figurate number, other examples being square numbers and cube numbers. The n th triangular number is the number of dots in the triangular arrangement with n dots on each side, and is equal to the sum of the n natural numbers from 1 to n. The sequence of triangular numbers, starting with the 0th triangular number, is

  5. List of types of numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_numbers

    Such a number is algebraic and can be expressed as the sum of a rational number and the square root of a rational number. Constructible number: A number representing a length that can be constructed using a compass and straightedge. Constructible numbers form a subfield of the field of algebraic numbers, and include the quadratic surds.

  6. Trump has '45' embroidered on his shirt cuffs -- but style ...

    www.aol.com/article/lifestyle/2018/02/23/trump...

    It's really easy to guess Trump's favorite number. It's 45. Look, it's right there on his shirt cuff, embroidered in blue for all to see. The monogram was most recently on display during a White ...

  7. List of British bingo nicknames - Wikipedia

    en.wikipedia.org/wiki/List_of_British_bingo...

    A common phrase meaning six units (see "12" below). Tom Mix Rhymes with "six". 7 Lucky [3] 7 is considered a lucky number in some cultures; see also "73". 8 Garden gate [5] Rhymes with "eight". One fat lady From the resemblance of the number 8 to an overweight woman; see also "88". 9 Brighton line [5] [6]

  8. What are angel numbers? A guide to the numeric ... - AOL

    www.aol.com/angel-numbers-guide-numeric...

    Angel numbers are repeating number sequences, often used as guides for deeper spiritual exploration. Ranging from 000 to 999 , each sequence carries its own distinct meaning and energy.

  9. This is the secret meaning behind the numbers on your ... - AOL

    www.aol.com/article/lifestyle/2019/04/02/this-is...

    No, it’s not an arbitrary serial number; it’s the Julian date, your fail-safe guide to fresh eggs. Ranging from 001 to 365, the Julian date represents the day the eggs were packaged.