It is called a triangle.
A three-sided, two-dimensional polygon is called a "triangle".
It is called a triangle
it is called a triangle
A 3-sided figure is called a triangle.
triangle
An equilateral triangle.
A triangle with 3 different sided triangular measures is called a scalene triangle basically.
A triangle by definition only has 3 sides, so a 5-sided triangle does not exist - unless you are including the in-side and out-side of it as two more sides. A five sided polygon is a pentagon.
A triangle only has 3 sides, but a 10 sided shape is called a decagon
An obtuse angled triangle!
triangle