Sagot :
Step-by-step explanation:
1.A parallelogram has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same). NOTE: Squares, Rectangles and Rhombuses are all Parallelograms.
2.An ordinary quadrilateral with no equal sides is not a parallelogram. A kite has no parallel lines at all. A trapezium and and an isosceles trapezium have one pair of opposite sides parallel. A Concave quadrilateral or arrowhead does not have parallel sides.
1:A square is also rectangle because it has two sets of parallel sides and four right angles.A square is also a parallelogram beacouse its opposite side are parallel All rectangles are parllelogram, but not all Parallelogram are rectangles and all of these shapes are quadrilaterals