Question:
An open metallic bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet. The surface area
of the metallic sheet used is equal to curved surface area of frustum of a cone + area of circular base + curved surface area of cylinder.
Solution:
True
Because the resulting figure is
Here, ABCD is a frustum of a cone and CDEF is a hollow cylinder.