There is no shape that is made up 3 sides that is not a triangle. Any shape that is made up of 3 sides is classified as a triangle no matter what shape or size it is.
A shape with three sides is called a triangle.
Assuming that each vertex is used to connect exactly two sides, all two-dimensional shapes will have the same number of sides as vertices. So a shape with 4 sides will have 4 vertices and a shape with 3 sides will have 3 vertices. Think of a square (4 sides, 4 vertices) and a triangle (3 sides, 3 vertices).
Triangle
If they are straight sides and the shape encloses a space then it is a polygon.
There is no shape that is made up 3 sides that is not a triangle. Any shape that is made up of 3 sides is classified as a triangle no matter what shape or size it is.
A triangle as no other 2d shape can have 3 sides.
A shape with 3 sides is a triangle.
A shape with three sides is a triangle.
How about a triangle which is a 2 dimensional shape with 3 sides
3 sides
A triangle has 3 sides.
A 4 sided shape has 4 vertices whereas a 3 sided shape has 3 vertices.
Shape has fewer than 6 sides
A shape with three sides is called a triangle.
Assuming that each vertex is used to connect exactly two sides, all two-dimensional shapes will have the same number of sides as vertices. So a shape with 4 sides will have 4 vertices and a shape with 3 sides will have 3 vertices. Think of a square (4 sides, 4 vertices) and a triangle (3 sides, 3 vertices).
A triangle has 3 sides