convex
Pentagon
toroid
Well, darling, the mathematical name for a tin can shape is a "cylinder." It's like a fancy word for a shape that looks like a can of beans. So next time you're sipping on your favorite drink, just remember you're holding a little cylinder in your hand.
A cylinder
convex
sphere
a washer
Pentagon
toroid
A decagon.
Any shape is mathematical.
octagon
a cube or cuboid
A six-sided shape is called a hexagon.
It is known as a regular polygon
A 5 sided polygon is a pentagon