A boiler is in the shape of cylinder with hemispherical ends. The total length of the boiler is 30m and its diameter is 12m. Find in terms of pie (i) its volume (ii) its surface area

Question

A boiler is in the shape of cylinder with hemispherical ends. The total length of the boiler is 30m and its diameter is 12m. Find in terms of pie  (i) its volume (ii) its surface area

tinash · Answer

Should I used pie r^2 ?

jhonyy9 · Answer

pir^2 is area of base of cilinder

jhonyy9 · Answer

multiplied by height you get the volume of cylinder but there is again the semisphere

tinash · Answer

so i get the base of the cylinder and then the hemispherical and add ?

jhonyy9 · Answer

do you know formula of volume of a sfhere ?

jhonyy9 · Answer

so this halfed you get volume of a hemisphere

anonymous · Answer

|dw:1462308544260:dw|