Circle - online puzzles

Circle

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. 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

r

=

0

{\displaystyle r=0}

(a single point) 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.

Round online puzzleMultiplication table puzzle online from photoColorful chewing gum balls puzzle online from photoColorful buttons online puzzleRound... online puzzlePool balls puzzle online from photoPocket watch on a chain online puzzleFlags puzzle online from photoOctagon- online puzzleChristmas gingerbread online puzzleColorful golf balls online puzzleHard disk drive puzzle online from photoJigsaw Puzzle online puzzleColored pencils puzzle online from photoClothespins on a string online puzzleJigsaw Puzzle online puzzleWatches puzzle online from photoArt of painting online puzzleOctagon 2 puzzle online from photoOld Buttons puzzle online from photoColorful pencils puzzle online from photoThe omnipresent circle online puzzleSkeins of colorful wool in a wicker basket online puzzleColorful pencils online puzzle
Round... online puzzlePolish zloty puzzle online from photoClocks puzzle online from photoJigsaw Puzzle puzzle online from photoBook and sunglasses on a beach towel online puzzleInside of the lighthouse on the Island of Vierge (France) online puzzleRound... puzzle online from photoRound puzzle online from photoPearls online puzzleRugs online puzzleThe omnipresent circle puzzle online from photoRound... online puzzlerosettes online puzzleRound online puzzleCans with paint online puzzleRecyclable waste online puzzleNew Year’s composition with old clock online puzzleJigsaw Puzzle puzzle online from photorosette puzzle online from photoRound... online puzzleMulti-colored ornamental stones online puzzleClocks online puzzleRosettes online puzzleDecoration of colored paper puzzle online from photo