Definitely a quadrilateral.
However, if the short sides are equal in length, and the long sides are equal in length then it could be a Kite, Rectangle or Parallelogram, depending upon whether the two short sides are next to, or opposite to, each other, and in the latter case if the angles are all 90° or not.
Also, if two of the sides are parallel but the other two are not, then it could be a trapezium.
A parallelogram or a rectangle
Without knowing their arrangement or the angles involved, all you can say is that it is a quadrilateral (4 sides). If the long sides are opposite, parallel, and equal in length -- and if the short sides are opposite, parallel, and equal in length -- you have a parallelogram. If all of the angles of the parallelogram are right angles, you have a rectangle.
A quadrilateral. If the short sides are equal in length and the long sides are equal in length then it is a kite. Otherwise it could be a trapezium (eg one with sides 4, 5, 16, 13) or it is an irregular quadrilateral.
a rectangle
A rectangle is a four-sided figure with two long sides and two short sides. The two long sides are the length of the rectangle. The two short sides are the width of the rectangle.
a paper
A parallelogram or a rectangle
Because it takes a lot more than just "2 long sides and 2 short sides" to make a rectangle. -- The 2 long sides have to be equal. -- They have to be opposite each other, not next to each other. -- The 2 short sides have to be equal. -- They have to be opposite each other, not next to each other. -- At least one of the angles where two sides come together has to be 90 degrees.
A parallelogram
A Rectangle!
NO You see that a rectangle has 2 long sides and 2 short side THAT IS HOW TO PROVE THE answer
Without knowing their arrangement or the angles involved, all you can say is that it is a quadrilateral (4 sides). If the long sides are opposite, parallel, and equal in length -- and if the short sides are opposite, parallel, and equal in length -- you have a parallelogram. If all of the angles of the parallelogram are right angles, you have a rectangle.
A square has 4 equal sides. A rectangle has 2 short sides of equal length and 2 long sides of equal length
A quadrilateral. If the short sides are equal in length and the long sides are equal in length then it is a kite. Otherwise it could be a trapezium (eg one with sides 4, 5, 16, 13) or it is an irregular quadrilateral.
A kite shape is one example -- 2 long sides adjacent to each other & 2 short sides adjacent to each other.
The quadrilateral you are describing is a scalene trapezoid. It has two sides of unequal lengths (the long sides) and two other sides of equal, shorter lengths (the short sides). This shape does not exhibit reflective symmetry and lacks right angles, fitting your criteria perfectly.
a rectangle