A 2D shape that has four sides and is thirteen letters long is a quadrilateral.
Quadrilateral
Paralellogram
The geometric answer is a rectangle but that does not have 13 letters. The answer is NOT a quadrilateral nor parallelogram because neither of them need have 4 right angles.
A shape with 4 sides is a quadrilateral
It could be a quadrilateral or a parallelogram.
quadrilateral? I don't Understand how this is a math history question.....XD
A quadrilateral is a 2D shape that has 4 sides
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 shape with 4 equal sides is a rhombus. If it also has 4 equal angles, then it is a square.
A shape with 4 right angles and 4 equal sides is a square. ==========================
There is no such shape.
A kite
a Kite
A shape with four sides has four vertices and a shape with three sides has three vertices, so a shape with four sides has more vertices than a shape with three sides.
a square
trapezium