A trapezoid?
A trapezoid
A kite figure has.
trapezoid
Not only does a rhombus always have one pair on parallel opposite sides, but it always has two! A rhombus is usually defined as a simple polygon of four sides where all the sides are the same length." If this is true of a figure then both pairs of opposite sides have to be parallel. Here is a proof for those who are interested. http://www.artofproblemsolving.com/Wiki/index.php/Rhombus#Proof_that_a_rhombus_is_a_parallelogram If there is only one pair of parallel sides in the figure, then it is a trapezoid. A rhombus is a trapezoid too.
A trapezoid is a four-sided figure with only one pair of parallel sides. A square will always have two pairs of parallel sides.
A four sided figure with all sides the same length and opposite sides parallel.
If you mean an isosceles trapezoid with parallel sides of 18 cm and 27 cm then the length of the 4th sides is 2 cm
A four-sided figure with two pairs of parallel sides the same length and four right angles is called a square.
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 parallegram or a rhombus.
It is a square.
A regular polygon with an even number of sides.