Question:
A cone of radius 4 cm with a slant height of 12 cm was sliced horizontally, resulting into a smaller cone (upper portion) and a frustum (lower portion). If the ratio of the curved surface area of the upper smaller cone and the lower frustum is 1:2, what will be the slant height of the frustum?
A cone of radius 4 cm with a slant height of 12 cm was sliced horizontally, resulting into a smaller cone (upper portion) and a frustum (lower portion). If the ratio of the curved surface area of the upper smaller cone and the lower frustum is 1:2, what will be the slant height of the frustum?
Updated On: Aug 9, 2024
- 12 – √3
- 12 – 2√3
- 12 – 3√3
- 12 – 4√3
- None of the above
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The Correct Option is D
Solution and Explanation
The correct option is (D) : 12 – 4√3
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