A Conical tent is to be made with canvas having a radius of 7 units and height of 4 units. How much canvas (in square units) will be required to make the tent (take π = 22/7)?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 22√65.
l = √(7² + 4²) = √(49 + 16) = √65
Curved Surface Area = π × r × l = (22/7) × 7 × √65 = 22 × √65 = 22√65