A container in form of a frustrum
of a cone is 8cm in diameter at the open
end and 12cm diameter at the bottom. if
the vertical depth of the container is 4cm,
Calculate to 1 d. p.
(a) the capacity of the container in litres
(b) the area of the materialal required to make
the container
(c) the volume of a frustrum of cone (Take π =22/7)