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Length and area of an Apollonian packing. (English) Zbl 07921341

Summary: We prove two theorems about the circular Apollonian packing. The first states that the circles used in the packing have an infinite total length. The second states that the largest circle is covered by the other circles used in the packing, up to an area of Lebesgue measure zero. Our proofs are elementary and only use basic coordinate geometry.

MSC:

51M04 Elementary problems in Euclidean geometries
51M25 Length, area and volume in real or complex geometry
Full Text: DOI

References:

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