A quadrilateral is a closed plane figure with four straight sides.
An 8-sided plane figure is an octagon.
A expample of a plane figure with 6 sides and 6 vertices is called a hexagon. hex means 6.
It is a dodecagon
A polygon
There is no specific name for "12 or more" sides. A 12 sided plane figure is a dodecagon. More generally, a plane figure bounded by 3 or more sides is a polygon.
A dodecagon.
It is a 12 sided dodecagon polygon
A dodecagon is a plane (2-dimensional) figure which is bounded by 12 straight lines.
A plane figure with eight sides is an octagon.
A Dodecahedron has twelve pentagonal faces. A Dodecagon is a plane figure with twelve sides.
It means a plane geometric shape bounded by 12 straight lines.
A quadrilateral is a closed plane figure with four straight sides.
If they are straight sides, then a polygon. Otherwise, simply "a closed plane figure with 3 or more sides".
its self because a plane figure is a figure that is flat and has all strait sides.
An 8-sided plane figure is an octagon.
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