(ENEM 2010) - Question Hard of GeographyIn a wedding, the hosts served champagne to their guests in hemisphere-shaped glasses (Figure 1), but an accident in the kitchen resulted in the breaking of a large number of these glasses. To replace the broken glasses, another type of glass with a cone shape was used (Figure 2). However, the couple requested that the volume of champagne in both types of glasses be the same. Knowing that the hemisphere-shaped glass is served completely full, the height of the champagne that should be placed in the other glass, in centimeters, is:
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