A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. Equivalently, it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant. The distance between any point of the circle and the centre is called the radius. Usually, the radius is required to be a positive number. A circle with


{\displaystyle r=0}
is a degenerate case. This article is about circles in Euclidean geometry, and, in particular, the Euclidean plane, except where otherwise noted.
Specifically, a circle is a simple closed curve that divides the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is only the boundary and the whole figure is called a disc.
A circle may also be defined as a special kind of ellipse in which the two foci are coincident, the eccentricity is 0, and the semi-major and semi-minor axes are equal; or the two-dimensional shape enclosing the most area per unit perimeter squared, using calculus of variations.

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  1. W

    Saan gaganapin at kelan ang LGBTQ parade, sa Quezon Mem Circle po ba sa QC?

    last year kasi sa quezon mem circle ang parade at sobrang daming nagpunta .. ngayon po saan po sya gaganapin? at kung ikaw ay miyembro o di miyembro , aattend kaba , bakit?
  2. Y

    Small circle

    Tapos in the end kayo kayo lang din nagsisiraan 😅
  3. S

    Sagon Circle: Dark Icon Pack APK v14.0 (Full Version)

    App Name Sagon Circle: Dark Icon Pack Publisher Bandot Genre Personalization Size 60M Latest Version 14.0 MOD Info Full Version Hidden content
  4. S

    Referral Looking for Pi friends to add to my security circle!

    Looking for Pi friends to add to my security circle! Mas maganda sana if KYC Verified na.
  5. P

    Help Di na ko masaya sa circle of friends ko, any advice?

    guys penge advice di na ko masaya sa circle of friends ko. ano gagawin ko. thanks
  6. Y

    The Wedding Dress Sewing Circle by Jennifer Ryan

    Three plucky women lift the spirits of home-front brides in wartime Britain, where clothes rationing leaves little opportunity for pomp or celebration. After renowned fashion designer Cressida Westcott loses both her home and her design house in the London Blitz, she has nowhere to go but the...
  7. B

    Referral Royal Circle Club Online Job

    Looking for Agent na gustong kumita linggohan, basta masipag kang maghanap ng player mo, mas malaki kkitain mo
  8. N

    DAmi drawings sa Quezon MEmorial Circle sa hagdan

    kita ko lang sa balita pinapaganda nila , nilalagyan ng artwork . . madalas ako dun dati mag jogging mag work out . .ngayon di na .. naging busy na masyado sa work , wala na time management puro work na lang .. di na makapag work out , kahit jogging walking man lang .. nag gain na din ako...
  9. B

    PlayToEarn Gambit City ka lang susuwertehin

    Grabe ba sa totoo lang, hindi naman ako malakihan tumataya kaht pa lima lima lang ayos na sakin, pero di ko akalain na makukuha ko yung jackpot, Blessing talaga, bukod sa napakabilis ng cash in sa site na to sobrang bilis din ng cash out, Nagcash in lang ako 100 at naglaro ako sa Crazy time...
  10. H

    Circle of life

  11. K

    Circle is a lovely shape

  12. E

    Circle of life ba?

    Ano say nyo? 🤣🤣🤣
  13. A

    May mga Nationalians ba rito?

    Hello mga lodicakes, may mga taga-National University - Manila ba rito? Let's hangout and probably build a bigger circle. Let me know! :D
  14. 4

    For Sale Inner Circle Trader (ICT) ρrémíùm Course

    Sa mga gusto mag-avail ng private course ni ICT (Inner Circle Trader), pwede kayo mag-avail sakin for only $10. 50% off sa first 5 na bibili.($5) What's In? •Prémium Mentorships from 2011-2019 •All ICT Indicators(sessions, killzones, •etc) •All content from his private mentorship. •All...
  15. W

    Help DELETED

  16. K

    Addmefast iMacros Facebook Liker JS Script Easy 10k points

    Pulot lang, gumagana kase sakin, nakaka 9k points na ako, 2 hours pa lang. nakita ko kase tong pinagkakakitaan din sa mga social services. Pang dagdag sya ng facebook likes, shares, subscribe, YøùTùbé sub and like, tska ung iba pa, sa twitter, pinterest, google circle, soundcloud...