Foci Distances on an Ellipse

| View Cart ⇗ | Info

Diagram that illustrates “The algebraic sum of the distances of any point from the foci of a conic is greater or less than 2a, according as the point is without or within the curve.”


Arthur Latham Baker The Elements of Solid Geometr with Numerous Exercises (Boston, MA: Ginn & Company, 1893)


TIFF (full resolution)

2400×1023, 191.8 KiB

Large GIF

1024×436, 21.9 KiB

Medium GIF

640×272, 12.6 KiB

Small GIF

320×136, 5.4 KiB