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1. |
Two right circular cones of equal curved surface areas have slant heights in the ratio of 3 : 5. Find the ratio of their radii. |
A. | 4 : 1 |
B. | 3 : 5 |
C. | 5 : 3 |
D. | 4 : 5 |
Answer» D. 4 : 5 | |