Quadrilateral

2. Submitted by
Name: Jeena Abraham
Option : Mathematics
No : 21

3. A quadrilateral is a four sided polygon with four
angles. There are many kinds of quadrilaterals.
Rectangle
Square
Parallelogram
Rhombus
Trapezoid
Isosceles trapezoid

4. Rectangle
• Opposite sides equal
•Opposite sides
parallel
•All angles right
•Diagonals equal
•Diagonals bisect
each other
A B
C D

5. Square
All sides equal
Opposite sides parallel
All angles right
Diagonals equal
Diagonals perpendicular
bisector of each other
P Q
R S

6. Rhombus
All sides equal
Opposite sides parallel
Diagonals perpendicular
bisector of each othe
Opposite angles equal
Sum of angles on the same side
1800
P
MN
O

7. parallelogram
•Opposite sides equal
•Opposite sides parallel
•Diagonals bisect each other
•Opposite angles equal
•Sum of angles on the same
side 1800
BA
CD

8. Only one pair of opposite sides
parallel
Sum of angles on each of non-
parallel sides 1800
Trapezium
P Q
S R

9. Only one pair of opposite
sides parallel
Non- parallel sides equal
Diagonals equal
Angles on each of parallel
sides equal
Sum of angles on each of non-
parallel sides 1800
Isosceles trapezium
M N
P O

10. Kite
Pair of adjacent sides
are equal
A
B C
D

11. .