2013 · Q58
A tent is a cylinder (dia 24 m, height 11 m) surmounted by a cone; vertex 16 m above ground. Curved surface area of conical portion?
Elementary MathematicsMensuration
- A3434/9
- B3431/8
- C3432/7
- D3234/7
Explanation
Slant=13; π×12×13=156π=3432/7. Answer C.