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| 1. |
The radius of a cone is r unit and its slant height is l unit . If the curved surface area of the cone be equal to the total surface area of a sphere of same radius , then the height of the cone will beA. `sqrt(15) ` r unitB. `sqrt(12)` r unitC. `sqrt(10)` r unitD. `sqrt(17)` r unit |
| Answer» Correct Answer - A | |