Is a Sliced Circle Segment Equivalent to Half an Ellipse?

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SUMMARY

The discussion confirms that a sliced circle segment is not equivalent to half an ellipse. While a circle can be considered a special case of an ellipse, where both foci coincide at the center, the curvature of circles and ellipses differs significantly. This distinction is crucial in understanding their geometric properties. Therefore, one cannot directly equate a circle segment with half an ellipse.

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  • Knowledge of curvature and its implications in geometry.
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Homework Statement



Is it true that the if you slice a circle into two segments, you can think of one of the pieces as being half an ellipse?

Homework Equations


The Attempt at a Solution



Not sure, I was just thinking about this! Not really any idea how to proceed to a solution, or how I can apply the definition of an ellipse (fixed distance from foci..) to solve.
 
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bananabandana said:

Homework Statement



Is it true that the if you slice a circle into two segments, you can think of one of the pieces as being half an ellipse?

Homework Equations





The Attempt at a Solution



Not sure, I was just thinking about this! Not really any idea how to proceed to a solution, or how I can apply the definition of an ellipse (fixed distance from foci..) to solve.

You can think of a circle as an ellipse with both foci at the same point, if that's what you mean.
 
bananabandana said:

Homework Statement



Is it true that the if you slice a circle into two segments, you can think of one of the pieces as being half an ellipse?

Homework Equations





The Attempt at a Solution



Not sure, I was just thinking about this! Not really any idea how to proceed to a solution, or how I can apply the definition of an ellipse (fixed distance from foci..) to solve.
In general, the answer is no. Circles and ellipses have different curvature, although you can think of a circle as being a special case of an ellipse (one with both foci at the same place, the center).
 

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