A Diamond.
/\
/ \
/ \
/ \
\ /
\ /
\ /
\/
Rectangle
trapizoid
The description given fits that of a rhombus.
A parallelogram has both pairs of opposite sides parallel but no right angles. A special kind of parallelogram is a rhombus which has all its sides of equal length
a parallelogram
rhombus
kkk
Rhombus
A kite.
Parallelogram
A rhombus
A parallelogram.
A rectangle and a square
square
parallelogram
parallelogram
a square