### Some articles on *circles, circle, concentric*:

Steiner Chain - Annular Case and Feasibility Criterion

6 n = 9 n = 12 n = 20 The simplest type of Steiner chain is a closed chain of n

6 n = 9 n = 12 n = 20 The simplest type of Steiner chain is a closed chain of n

**circles**of equal size surrounding an inscribed**circle**of radius r the chain of**circles**is itself ... The inscribed and circumscribed given**circles**are**concentric**, and the Steiner-chain**circles**lie in the annulus between them ... By symmetry, the angle 2θ between the centers of the Steiner-chain**circles**is 360°/n ...Steiner Chain - Properties Under Inversion

... of Steiner chains In an annular Steiner chain, the angle subtended by a single

... of Steiner chains In an annular Steiner chain, the angle subtended by a single

**circle**is 2θ (gold lines), which is also the angle subtended by adjacent points of tangency Two**circles**(pink and cyan ... The gold**circles**intersect the two given**circles**at right angles, i.e ... orthogonally The**circles**passing through the mutual tangent points of the Steiner-chain**circles**are orthogonal to the two given**circles**and intersect one another at multiples ...### Famous quotes containing the word circles:

“And why do you cry, my dear, why do you cry?

It is all in the whirling *circles* of time.

If millions are born millions must die,”

—Robinson Jeffers (1887–1962)

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