No, a square is an equilateral quadrilateral. http://en.wikipedia.org/wiki/Quadrilateral
Rectangle
A square is a rectangle, a rhombus, an equilateral parallelogram, and a regular quadrilateral.
A rhombus is any equilateral ( all four sides congruent) quadrilateral. If it has right angle for the vertices then it is a rectangle called a square.
You could call it a regular quadrilateral, or an equilateral rectangle or even an equiangular rhombus, if you prefer.
No, a square is an equilateral quadrilateral. http://en.wikipedia.org/wiki/Quadrilateral
A rectangle
Not necissarily. Quadrilateral simply says it has 4 sides. A rectangle has perpendicular sides. Equilateral means that the sides are of equal length (like a square, which is a special case rectangle)
A rectangle.
Rectangle
A square is an equilateral rectangle or an equiangular rhombus or a regular quadrilateral.
A square is a rectangle, a rhombus, an equilateral parallelogram, and a regular quadrilateral.
A rectangle comes to mind. A rectangle is equiangular (all angles the same) and is also a quadrilateral (four-sided), but is not equilateral (all sides of the same length).
square, rectangle, quadrilateral, polygon, parallelogram, equilateral
A square and rectangle all fit this description.
A rhombus is any equilateral ( all four sides congruent) quadrilateral. If it has right angle for the vertices then it is a rectangle called a square.
You could call it a regular quadrilateral, or an equilateral rectangle or even an equiangular rhombus, if you prefer.