construction of quadrilaterals

1. VEENA B
MATHEMATICS

4.  Opposite sides equal
 Opposite sides parallel
 All angles right
 Diagonals equal
 Diagonals bisect each other

6.  All sides equal
 Opposite sides parallel
 All angles right
 Diagonals equal
 Diagonals perpendicular bisectors of each
other

8.  Opposite sides equal
 Opposite sides parallel
 Diagonals bisects each other
 Opposite angles equal
 Sum of angles on the same side 180 degree

10.  All sides equal
 Opposite sides parallel
 Diagonals perpendicular bisectors of each
other
 Opposite angles equal
 Sum of angles on the same side 180 degree

12.  Only one pair of opposite sides parallel
 Sum of angles on each of non parallel sides
180 degree.

14.  Only one pair of opposite sides parallel
 Non parallel sides equal
 Diagonals equal
 Angles on each of parallel sides equal
 Sum angles on each of non parallel sides 180
degree