Triangles have 3 sides.
triangles
Triangles
2-dimensional shapes, with three straight sides have three vertices.
Shapes that have four sides are known as quadrilaterals.
No, octagons just have to be closed shapes with eight sides - the sides do not have to be of equal length.
triangles
Triangles
Impossible shapes. They are four sided shapes with three sides!
Cylinder shapes only have three sides.
2-dimensional shapes, with three straight sides have three vertices.
An insignificantly small fraction.
Angle
Polygons are shapes with three sides or more. Circular shapes are NOT polygons.
a triangle is a with three sides
a triangle is a with three sides
You specify shapes by the number of sides (or edges, different name) they have. The suffix -gon at the end of a word show how many sides it has in the words. For example, an octagon has eight sides; so if you see a shape with eight sides, it's an octogon. All shapes are known as polygons, which means it has three or more sides.
A shape with three sides is called a triangle. A shape with ten sides is called a decagon.