Sounds like filter paper to me (usually a circle of the paper).
Funnel, ice cream cone, traffic cone.
an ice-cream cone
From a distance a cone looks like an isosceles triangle.
I believe it is a cone, if you are intending for us to tell you the 3d figure.
cone
A cone is the solid shape that matches a funnel. Both have a circular base that narrows to a single point at the top.
Tornadoes are generally funnel or cone shaped.
the answer is a cone, "elephant trunk," or cylinder shape under most circumstances.
Sounds like filter paper to me (usually a circle of the paper).
Funnel, ice cream cone, traffic cone.
A cone-shaped tornado is simple a tornado whose funnel is cone-shaped. Tornado funnels may also appear rope-like, column-like, or appear wispy. The shape and size of a tornado do not necessarily indicate how strong the tornado is.
A tornado is called a funnel because of its shape - it often appears as a rotating column of air that narrows towards the base, resembling a funnel or a cone. This funnel shape is created as the tornado draws in debris and moisture from the ground, giving it its characteristic appearance.
Cone
Tornadoes have a cone shape due to the way air spins within the storm. The rotating updraft of air causes the tornado to narrow at the base and widen toward the top, creating a cone shape. This shape is a result of the strong winds and pressure differences within the storm system.
an ice-cream cone
They are shaped like a funnel.