A rhombus (pushed over square) will give you 2 pairs of parallel, congruent sides, 2 acute angles and 2 obtuse angles.
parallelogram
triangle
trapezoid
a tapezium
2 opposite acute angles and 2 opposite obtuse angles with opposite parallel sides
parallelogram
A triangle having all angles less than 90 degrees is a polygon having no parallel sides and all acute angles.
triangle
trapezoid
trapezoid
a tapezium
2 opposite acute angles and 2 opposite obtuse angles with opposite parallel sides
A parallelogram is a quadrilateral with opposite sides parallel and congruent.
It could be a hexagon which is stretched out so that one pair of opposite angles become acute - but they must be different otherwise you will have three pairs of parallel sides.
Trick Question.
It could be a hexagon which is stretched out so that one pair of opposite angles become acute - but they must be different otherwise you will have three pairs of parallel sides.
A parallelogram or a rhombus