It is a rhombus
It is an isosceles trapezoid.
A regular quadrilateral is a square. It is a four-sided figure with all sides being the same length and all angles equal (right angles).
A quadrilateral with 4 right angles and opposite sides that are parallel can be either a rectangle if the adjacent sides are of different length or a square if the adjacent sides are of the same length.
A quadrilateral with 4 equal sides and 4 right angles is a square.
It is a rhombus
It is an isosceles trapezoid.
Square
a pentagon
rhombus. The rhombus is a quadrilateral with all sides equal in length. It is also a parallelogram, so opposite sides are parallel and equal in length, and opposite angles are equal.
A square
square
A square..
It is a parallelogramIf one of the angles is a right angle (then they all are) and the quadrilateral is a rectangle.If both pairs of sides are equal in length (but none of the angles is a right angle) the quadrilateral is a rhombus.If the sides are equal and one of the angles is a right angle, the quadrilateral is a square.
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.
A regular quadrilateral is a square. It is a four-sided figure with all sides being the same length and all angles equal (right angles).
rectangle