関連ワード:
which quadrilaterals have two pairs of opposite sides parallel which quadrilaterals have both pairs of opposite sides parallel which quadrilaterals have 2 pairs of opposite sides parallel which quadrilateral has two pairs of opposite sides parallel which quadrilaterals have two pairs of opposite sides equal which quadrilateral has both pairs of opposite sides parallel which quadrilateral has two pairs of opposite sides equal which quadrilateral has both pairs of opposite sides equal in which quadrilaterals are both pairs of opposite sides parallel which quadrilateral does not have both pairs of opposite sides parallel
