1. by: Adrian M. Mataac
Bayuin NHS
(Socorro, Oriental Mindoro)

2. QUADRILATERALS
 Is a polygon consists of four segments joining at their
endpoints
 PROPERTIES:
 with four sides
 with four angles
 with four vertices
 With one pair of diagonals
 The measure of all the interior angles is 360 degees.

3. QUADRILATERALS
 Regular quadrilateral
Convex quadrilateral
Square
Concave quadrilateral

4. QuadrilateraI is denoted by its vertices, written consecutively in
clockwise or counterclockwise direction
S
consecutive
A
opposite
vertices S and A
angles
M
E
SAME
EMAS
A and E
LS and LA
LA and
LE
sides
SA and AM
SA and
EM

5. Quadrilaterals
Quadrilateral
(Trapezium)
Parallelogram
Trapezoid
Rectangle
Rhombus
Isosceles
Trapezoid
Square
Kite

6. Types of Quadrilaterals
 Parallelogram: Quadrilateral with opposite sides
that are parallel and of equal length and opposite
angles are equal
Indicates equal sides

7. Types of Quadrilaterals
 Rectangle: Quadrilateral with two pairs of equal
sides and four right angles (90 degrees)
Indicates equal sides
Box indicates 900 angle

8. Types of Quadrilaterals
 Rhombus: Parallelogram with four equal sides and
opposite angles equal
Indicates equal sides

9. Types of Quadrilaterals
 Square: Quadrilateral with four equal sides and four
right angles
(90 degrees)
Indicates equal sides
Box indicates 900 angle

10. Types of Quadrilaterals
 Trapezoid: A quadrilateral with exactly one pair of
parallel sides
Parallel sides never meet.

11. Trapezoid
 Isosceles Trapezoid: Trapezoid with nonparallel sides
congruent

12. Kite
 Kite: A quadrilateral with two pairs of adjacent sides
congruent and no opposite sides congruent