Well, 2-D shape is a square, or a quadrilateral
A shape with 12 sides is called a dodecagon.
A shape with 7 sides is a heptagon
A shape with three sides is a triangle.
you call a two dimensional shape with six sides a hexagon
Triangle is a shape with three sides.
A shape with 8 sides is an octagon.
A 2 dimensional shape that has 12 sides is called a: Dodecagon
Dodecagon...it has 12 sides and 12 corners.
A regular shape.
A dodecagon has 12 sides.
a shape with nine sides is called nonagon