An heptagon sometimes call a septagon
A shape with 7 sides.
a heptogon has 7 sides
A heptagon has 7 sides.
A shape with three sides is a triangle.
you call a two dimensional shape with six sides a hexagon
a shape with eleven sides is called a undecagon
A shape with 8 sides is an octagon.
A shape with twelve sides is called a dodecagon.
Triangle is a shape with three sides.