enow.com Web Search

  1. Ads

    related to: calculate diameter of circle formula worksheet
  2. education.com has been visited by 100K+ users in the past month

    • Digital Games

      Turn study time into an adventure

      with fun challenges & characters.

    • Education.com Blog

      See what's new on Education.com,

      explore classroom ideas, & more.

Search results

  1. Results from the WOW.Com Content Network
  2. Area of a circle - Wikipedia

    en.wikipedia.org/wiki/Area_of_a_circle

    Circle with similar triangles: circumscribed side, inscribed side and complement, inscribed split side and complement. Let one side of an inscribed regular n-gon have length s n and touch the circle at points A and B. Let A′ be the point opposite A on the circle, so that A′A is a diameter, and A′AB is an inscribed triangle on a diameter.

  3. List of formulae involving π - Wikipedia

    en.wikipedia.org/wiki/List_of_formulae_involving_π

    where C is the circumference of a circle, d is the diameter, and r is the radius. More generally, = where L and w are, respectively, the perimeter and the width of any curve of constant width. = where A is the area of a circle. More generally, =

  4. Circle - Wikipedia

    en.wikipedia.org/wiki/Circle

    A circle of radius 1 (using this distance) is the von Neumann neighborhood of its centre. A circle of radius r for the Chebyshev distance (L ∞ metric) on a plane is also a square with side length 2r parallel to the

  5. Measurement of a Circle - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_a_Circle

    A page from Archimedes' Measurement of a Circle. Measurement of a Circle or Dimension of the Circle (Greek: Κύκλου μέτρησις, Kuklou metrēsis) [1] is a treatise that consists of three propositions, probably made by Archimedes, ca. 250 BCE. [2] [3] The treatise is only a fraction of what was a longer work. [4] [5]

  6. Liu Hui's π algorithm - Wikipedia

    en.wikipedia.org/wiki/Liu_Hui's_π_algorithm

    Liu Hui's method of calculating the area of a circle. Liu Hui's π algorithm was invented by Liu Hui (fl. 3rd century), a mathematician of the state of Cao Wei.Before his time, the ratio of the circumference of a circle to its diameter was often taken experimentally as three in China, while Zhang Heng (78–139) rendered it as 3.1724 (from the proportion of the celestial circle to the diameter ...

  7. Equivalent radius - Wikipedia

    en.wikipedia.org/wiki/Equivalent_radius

    The hydraulic diameter is the equivalent circular configuration with the same circumference as the wetted perimeter. The area of a circle of radius R is . Given the area of a non-circular object A, one can calculate its area-equivalent radius by setting = or, alternatively:

  8. Perimeter - Wikipedia

    en.wikipedia.org/wiki/Perimeter

    In terms of the radius r of the circle, this formula becomes, P = 2 π ⋅ r . {\displaystyle P=2\pi \cdot r.} To calculate a circle's perimeter, knowledge of its radius or diameter and the number π suffices.

  9. Circular mil - Wikipedia

    en.wikipedia.org/wiki/Circular_mil

    As the definition of the unit contains π, it is easy to calculate area values in circular mils when the diameter in mils is known. The area in circular mils, A, of a circle with a diameter of d mils, is given by the formula: {} = {}.

  1. Ads

    related to: calculate diameter of circle formula worksheet