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1. |
A hemispherical cup of radius 4 cm is filled to the brim with coffee. The coffee is then poured into a vertical cone of radius 8 cm and height 16 cm. The percentage of the volume of the cone that remains empty is: |
A. | 87.5% |
B. | 80.5% |
C. | 81.6% |
D. | 88.2% |
Answer» B. 80.5% | |