A rectangle, possibly or, given your spelling, a rectanle.
This shape has only one pair of opposite sides and no right angles: <
parallelogram
A rhombus
A Diamond. /\ / \ / \ / \ \ / \ / \ / \/
rhombus
Rectangle
One answer is a rhombus. It could also be a parallelogram.
rhombus
A parallelogram.
polygon
kkk
rhombus