A Rhombus.
rectangle
a rhombus or parallelogram
octagon
It is a trapezoid and its other 2 angles are obtuse and acute
A four-sided quadrilateral having two lines of symmetry is a rectangle
tseyyhstrh th htsr
Parrallelogram (it has rotational symmetry but no lines of symmetry)
Parallelogram
rectangle
a rhombus or parallelogram
octagon
It is a trapezoid that can have two right angles plus one obtuse angle plus one acute angle and the four angles add up to 360 degrees.
An irregular quadrilateral.
There are no lines of symmetry.
A quadrilateral with 4 right angles can only be a rectangle or a square. A rectangle has only two lines of symmetry - the lines joining the midpoints of its opposite sides. So the answer cannot be a rectangle. A square has the same lines of symmetry as a rectangle, plus the two diagonals - 4 lines in all.
Impossible.
An equallateral triangle ~ID1533681184 Sorry ID1533681184 but and equallateral triangle does not have three lines of SYMMETRY, it has three line segments. ~EEE2