If they are flat two dimensional shapes with three or more sides, they are called polygons.
If they are solid figures, they are called polyhedrons.
The words come from Greek:
Polugonos = many angled
Poluedros - many sided
Both definitions taken from my Concise Oxford English Dictionary.
Chat with our AI personalities
Shapes with straight sides are called polygons
There are infinitely many 2d shapes. They can have 1 side (a circle or ellipse) to infinitely many. They can have sides that are straight or not, the sides can be equal or unequal in length, the angles can be equal or unequal, etc.
There are many such shapes and there is no specific name.
a triangle
quadrangles No it quadrilaterals