That's a rhombus ... a special type of parallelogram.
Chat with our AI personalities
a closed plane figure with all sides congruent and all all angles
That's a rhombus ... a special type of parallelogram.
A nonagon. It also has nine sides.
A quadrilateral with 4 right angles cannot have just two congruent sides so, unless this is a trick question (2 congruent sides does not excluded the possibility of more than 2 congruent sides), the answer is there is no such plane figure.
Not always because a quadrilateral is any 4 sided shape.