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The radius of the base of a conical tent is 16 metre. If 427(3/7)sq. metre canvas is required to construct the tent, then the slant height of the tent is : (Take π = 22/7)
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- 17 metre
- 15 metre
- 19 metre
- 8.5 metre
- 17 metre
Correct Option: D
Curved surface area of cone = πrl
| ∴ | × 16 × l = | ||
| 7 | 7 |
⇒ 22 × 16 × l = 2992
| ⇒ l = | = 8.5 metre | |
| 22 × 16 |
