Square
A Rhombus
square
Rhombus
A rectangle or a square.
The quadrilateral you are describing is a parallelogram. In a parallelogram, opposite sides are parallel and equal in length, but it does not necessarily have right angles; the angles can be acute or obtuse. Examples of such parallelograms include rhombuses and non-right-angled rectangles.
a pentagon
rhombus
QUADRILATERAL
A rectangle.
a rhombus
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rhombus