a Rhombus...
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.
It is a rhombus
It is an isosceles trapezoid.
This is a parallelogram called a rectangle. A square has four right angles and four sides that are equal in length.
A Rectangle.
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
It is a rhombus
rhombus
straight sides A parallelogram is a square when all four sides are the same length and all four angles are right angles (90 degrees).
2
The rectangle
Rhombus!
It is an isosceles trapezoid.
a pentagon
Its a diamond :]