A hut is in the shape of a hemisphere surmounted on a cylinder. The diameter of the base is 24m. What is the area of the canvas required to cover the hut, if the maximum height of the hut is 20m ?
option
(a)472 sq.m
(b)456 sq.m
(c)480 sq.m
(d)342 sq.m

• hut area=curved surface of hemispere+ curved area of cylinder(exclude two circles)
  =(2*pi*r^2)+(2*pi*r*h)
  =480pi sq.m
• 11 years agoHelpfull: Yes(29) No(7)
• area of a cylinder = (2*pi*r^2) + (2*pi*r*h) [where h=20 r=24/2=12]
  in this way ans is = 2413.71
  correct me if i am wrong
• 11 years agoHelpfull: Yes(5) No(12)
• we have total area of sphere is 2pie r^2 n for semisphere it is pie r^2 rit.can u explian naveen
• 11 years agoHelpfull: Yes(1) No(2)
• 480 PI SQ.M
• 11 years agoHelpfull: Yes(1) No(2)
• can yu explain in deatial?
• 11 years agoHelpfull: Yes(1) No(2)