Power point presentation based on quadrilaterals

3. RECTANGLE
 Opposite sides equal
 Opposite sides parallel
 All angles right
 Diagonals equal
 Diagonals bisect each other

4. SQUARE
 All sides equal
 Opposite sides parallel
 All angles right
 Diagonals equal
 Diagonals are perpendicular bisectors of each other

5. PARALLELOGRAM
 Opposite sides equal
 Opposite sides are parallel
 Opposite angles equal
 Diagonals bisects each other
 Sum of angles on the same side 180◦

6. Rhombus
 All sides equal
 Opposite sides parallel
 Diagonals perpendicular bisectors of each other
 Opposite angles on same side 180◦

7. Trapezium
 Only one pair of opposite sides parallel
 Sum of angles on each of non-parallel sides 180◦

8. ISOSCELES TRAPEZIUM
 Only one pair of opposite sides are parallel
 Non-parallel sides equal
 Diagonals equal
 Angles on each of parallel sides equal
 Sum of angles on each of non-parallel sides 180◦