A shape that has four sides of equal length and no right angles is called a rhombus. In a rhombus, the opposite angles are equal, and the diagonals bisect each other at right angles. Unlike a square, which is a special type of rhombus with right angles, a rhombus can have various angles that are not 90 degrees.
The rectangle
Its a diamond :]
A rhombus
Squares have four sides of equal length and four right angles.Rhombuses (rhombi) have four sides of equal length but the angles are not right angles. Rectangles have four right angles but the sides are not all of the same length.
An isosceles trapezoid will have diagonals of equal length but will never contain right angles by definition. A square and rectangle will have diagonals of equal length but will contain 4 right angles. A rhombus and any other parallelogram that does not contain right angles will not have diagonals of equal length.
If you mean all right angles are equal in MEASURE, then this would be a square or a rectangle, but if you meant 4 right angles and 4 sides of equal length then that would be a square.
square
rhombus
It is a rhombus
The rectangle
Rhombus!
It is an isosceles trapezoid.
a pentagon
A square
Its a diamond :]
Square