File:Finding center of ellipse.gif

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Finding_center_of_ellipse.gif ‎(512 × 256 pixels, file size: 63 KB, MIME type: image/gif, looped, 12 frames, 9.6 s)

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English: How to geometrically find the center of an ellipse:

1. Take two points on the ellipse, A and B
2. Take another point, A', on the ellipse
3. Draw a line through A', parallel to AB
4. Let the other intersection of the new line and the ellipse be B'
5. Let M be the midpoint of [AB] and M' the midpoint of [A'B']
6. Let I and I' be the intersections of the ellipse with MM'

7. The center, O, is the midpoint of [II']
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Source Own work
Author Alkados
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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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This method also works for hyperbolas.

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current02:51, 16 May 2010Thumbnail for version as of 02:51, 16 May 2010512 × 256 (63 KB)Alkados (talk | contribs){{Information |Description={{en|1=How to geometrically find the center of an ellipse:<br> 1. Take two points on the ellipse, A and B<br> 2. Take another point, A', on the ellipse<br> 3. Draw a line through A', parallel to AB<br> 4. Let the other intersect

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