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A spherical wineglass, known diameter, is brim full of wine. What is the width of any vertical parallel slice with a volume of 1/4 of the wine?

Assume that the height of the wineglass is known.

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    "Spherical wineglass".. how is it meant? can we assume it is a full sphere, or chopped?2012-10-06
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    Spherical wineglasses would be rather frustrating, methinks ...2012-10-06
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    The wineglass is chopped2012-10-06
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    The problem requires a formula where one cut face would be defined, it can be in the centre or elsewhere.2012-10-06
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    Perhaps you mean a hemispherical wineglass?2012-10-06
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    Does the height of the wineglass include the stem of the glass?2012-10-06
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    The wineglass is greater than a hemisphere. It does not include the stem.2012-10-06
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    What curve are you calling a wineglass?2013-06-06
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    Put a picture, please.2014-06-06

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