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This image demonstrates the properties on an
ellipse. Although an ellipse is not as simple as the circle, it is the most
common conic in everyday life. |
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Planets and other satellites move in an elliptical path
around the object that they revolve. |
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The principle of the ellipse is commonly used in "whispering
galleries." In places with an elliptical shaped ceiling if you stand at one
focus and whisper, it can be heard at the other focus, although it will not
be heard at many places in between. |
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 | The equation for an ellipse in this direction is shown by
 . |
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| The equation for an ellipse in this direction is shown by
 . |
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