A decagon - if the sides are all equal, and the angles are all equal, it is a regular decagon.
A 5 sided shape with 5 angles is a pentagon
It is a regular polygon.
a square :D
It all depends on the shape; different 2D geometrical shapes have different characteristics.Some specialized geometrical shapes:Square: 4 sides; 4 equal sides; 2 pairs of parallel sides; 4 right angles (90 degrees)* A square is a rectangle.Rectangle: 4 sides; 2 pairs of parallel sides; 4 right angles (90 degrees)* A rectangle is not a square.Triangle (equilateral): 3 sides; 3 equal sides; all angles 60 degreesTriangle (isosceles): 3 sides; 2 equal sides (usually the base is the odd one)Triangle (scalene): 3 sides; all uneven sides and anglesRhombus: 4 sides; 4 equal sides; 2 pairs of parallel sides; 4 equal anglesParallelogram: 4 sides; 1 pair of parallel sidesThese are the basic geometrical 2D shapes, but there are others that are more complex.
what do you mean by points? do you mean angles or sides?
A six sided geometrical figure is called a hexagon.
A rectangle
square
An impossible figure in two dimensional space. A Dacagon has ten sides and must have ten angles.
A square.
A decagon - if the sides are all equal, and the angles are all equal, it is a regular decagon.
Three straight sides Closed figure two dimensional three angles
A 5 sided shape with 5 angles is a pentagon
rhombus
It fits the desciption of a square
All triangles have exactly 3 sides. That is what the word triangle means, a geometrical figure having 3 angles and 3 sides. Always 3.