The base of a conical tent is 19.5 m in diameter and the height of the tent is 2.8 m. What area of canvas is required to put up such a tent?

(1) 300m^2
(2) 400 m^2
(3) 310.7 m^2
(4) none of the above

• (3) 310.7 m^2
  
  canvas reqd= Curved surface area of the tent = pi*r*l
  
  
  l^2 = r^2 + h^2 where r= 19.5 = 9.75 mtr and h = 2.8 mtr
  canvas reqd = pi* 9.75 * root((2.8)^2 + (9.75)^2) = 310.7 sq mtrs
• 12 years agoHelpfull: Yes(3) No(0)