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1. |
The base of a cone and a cylinder have the same radius 6 cm. They have also the same height 8 cm. The ratio of the curved surface of the cylinder to that of the cone is ? |
A. | 4 : 3 |
B. | 5 : 3 |
C. | 8 : 5 |
D. | 8 : 3 |
Answer» D. 8 : 3 | |