There is no specific name for such a quadrilateral.
A shape with 4 right angles and 4 equal sides is a square. ==========================
A shape with 4 equal sides is a rhombus. If it also has 4 equal angles, then it is a square.
a rhombusNotice that if all 4 sides are equal, then they must be parallel.
No shape has four equal sides and four different angles - either there are two pairs of equal angles, or all four angles are the same; or all sides are not the same length.
triangular pyramid-4 equal faces
a triangle=======================an equilateral triangle
Any four-sided shape is a Quadrilateral.This includes squares, rectangles, and the ones with 4 non-equal sides.square: 4 equal sides, 4 equal angles, all 90 degrees, opposite sides parallelrectangle: 4 sides, 4 equal angels, all 90 degrees, opposite sides parallelrhombus: 4 equal sides, opposite angles equal (not all 4) ("diamond" shape)trapezoid: 2 opposite sides parallel, other two sides NOT parallel, angles generally not equal (looks like 2-D pyramid with top chopped off)irregular quadrilateral: the others that don't fit into these categories
A Square # a square
It is a rhombus that has 4 equal sides but is not a square
It is a rhombus that has 4 equal sides but is not a square
4 sides, 4 vertices, 2 equal angles, 2 pairs of equal sides
a square