There are many such shapes and there is no specific name.
Any 8 sided polygon is called an octagon. If all of the sides and angles are equal, then it's called a regular octagon.
A four-sided polygon with four congruent sides and four equal angles is a square
A regular polygon has equal lengths of each side, AND the same angle between each of the sides. A Square is a polygon, an equilateral triangle is a polygon, a pentagon is a five - sided polygon, and so on.
It is impossible to have a two-sided regular polygon with equal length sides. The two sides would merely form an open angle, with no closed third side.
A ten sided polygon is called a Decagon.
A regular polygon has equal length sides while a polygon does not have to have equal sides.
A 3 sided polygon with 2 equal sides is an isosceles triangle
Any 8 sided polygon is called an octagon. If all of the sides and angles are equal, then it's called a regular octagon.
Equilateral triangle.
A four-sided polygon with four congruent sides and four equal angles is a square
Shapes with 13 to 20 sides are known as polygons. Specifically, a 13-sided polygon is called a tridecagon, a 14-sided polygon is called a tetrakaidecagon, a 15-sided polygon is called a pentadecagon, a 16-sided polygon is called a hexadecagon, a 17-sided polygon is called a heptadecagon, an 18-sided polygon is called an octadecagon, a 19-sided polygon is called an enneadecagon, and a 20-sided polygon is called an icosagon.
A regular polygon has equal lengths of each side, AND the same angle between each of the sides. A Square is a polygon, an equilateral triangle is a polygon, a pentagon is a five - sided polygon, and so on.
A polygon with 10 sides is called...
A 3 sided polygon with 2 equal sides is an isosceles triangle
trapezoid
It can be if all the sides are of equal length.
It is impossible to have a two-sided regular polygon with equal length sides. The two sides would merely form an open angle, with no closed third side.