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1. |
A and B are two cones. The curved surface area of A is twice that of B. The slant height of B is twice that of A. What is the ratio of radii of A to B? |
A. | 3 : 2 |
B. | 1 : 4 |
C. | 4 : 1 |
D. | 2 : 1 |
Answer» D. 2 : 1 | |