If it is a 4-sided figure, then a parallelogram. But if it has only two equal sides, it cannot be a rhombus (or square, which is a special case of rhombus).
It could also be a pentagon with vertices at A=(0,0), B=(2,0), C=(3,1), D=(3,2) and E= (0,2). Then AB and ED are parallel (both to the x-axis), and AE and CD are parallel (both to the y-axis). Also, AB and AE are both 2 units long. In this configuration, the x-coordinate of C and D could take almost any value as long as it was the same for these two points.
Then there are hexagons, heptagons etc, etc that can satisfy the requirements.
you may also want to look at trapezoids and equilateral.. rhombus have equal opposing angles!
A parallelogram, or variants of polygons with 6 or more sides.
It is a parallelogram.
If it has four equal sides, then two parallel sides implies two PAIRS of parallel sides. The shape is a rhombus.
A square has 4 equal sides, 2 pairs of parallel sides and 4 right angles.
A triangle has 3 sides. A regular triangle has all EQUAL sides. An isosceles triangle has 2 EQUAL sides. A scalene triangle has NO equal sides. Equal = parallel..basically equal and parallel are the same thing, in this conversation.
Triangel
An isosceles trapezoid has a pair of parallel sides and a pair of equal base angles
A parallelogram, or variants of polygons with 6 or more sides.
A rectangle perhaps?
A parallelogram has 2 pairs of parallel sides.
Any polygon with 4 or more sides can have 2 parallel sides.
A trapezium could do that. Moreover, I think any polygon with an even number of sides also could.
A 3-sided polygon has 0 parallel sides. A 4-sided polygon can have 0, 2 or 4 parallel sides. A 5-sided polygon can have 0, 2, 3 or 4 parallel sides. In general, an n-sided polygon can have 0, 2, 3, ..., n-1, or n parallel sides where n>5. A polygon with n sides can have n pairs of parallel sides (if n is even) or (n-1)/2 pairs if n is odd AND greater than 3. But it need not have any.
A rhombus - or parallelogram.
Parallelogram.
It is a parallelogram.
A 3 sided polygon with 2 equal sides is an isosceles triangle