The document defines and describes properties of different types of quadrilaterals. It provides a chart showing the relationships between quadrilaterals and their defining characteristics. Formulas for calculating the area and perimeter of parallelograms, rectangles, squares, rhombuses, and kites are also presented. Key terms related to quadrilaterals such as parallel, perpendicular, diagonal, and symmetry are defined in a glossary.

1. QUADRILATERAL
(SEGI EMPAT)
SMPK PENABUR GADING SERPONG
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A. DEFINITION OF QUADRILATERAL
B
QUADRILATERAL is a polygon ( sisibanyak )with 4
C angles and 4 straight sides.
A
The sum of all the angles of a quadrilateral is 3600.
D
B. A QUADRILATERAL CHART
It is easier to see the relationships among quadrilaterals using a chart. Each
quadrilateral belongs to the family of quadrilaterals linked to it above and has its
characteristics.
quadrilateral
4 sides
trapezium
Kite
1 pair of parallel
sides
parallelogram
2 pairs of
consecutive
2 pairs of sides of equal
parallel side measure
rectangle
rhombus
4 right angles square
4 sides of equal
4 right angles and measure
4 sides of equal
measure

2. C. PROPERTIES OF QUADRILATERAL
QUADRILATERAL PROPERTIES
1) Opposite sides are equal
2) Opposite sides are parallel
3) Opposite angles are equal
4) Diagonals bisect to each other
Parallelogram:
A quadrilateral with each pair of opposite
sides parallel.
Rhombus: 1) All sides are equal
A parallelogram 2) Opposite sides are parallel
with sides of 3) Diagonals are perpendicular (
equal length. tegaklurus ) to each other
4) Opposite angles are equal
5) Diagonals are the angles bisector
6) Diagonals are line of symetry
1) All angles are right angle
2) Opposite sides are equal and parallel
3) Diagonals are equal and bisect to each
other
4) It has 2 line of symmetry and 2
Rectangle: rotational symmetry
A parallelogram with a right angle.
1) All sides are equal
Square: A rectangle 2) All angles are right angle
with sides of equal 3) Opposite sides are equal
length. 4) Diagonals are equal and bisect to each
other at 900 (perpendicular)
5) Diagonals are bisector angle
1) The diagonals are perpendicular to
Kite: A quadrilateral each other
with exactly two pairs 2) One of the diagonals bisects the other
of equal consecutive 3) One pair of angles are equal
sides 4) 2 pairs of consecutive sides of equal
measure.
5) It has two diagonal of different
length
1) One pair of parallel sides
Trapezium : Trapezium is a
quadrilateral with a pair of parallel sides

3. D. AREA AND PERIMETER OF QUADRILATERAL
QUADRILATERAL AREA AND PERIMETER
Parallelogram A=bxh
P = the sum of all sides
h
b A = Area
P = Perimeter
b = base
h = height
Rhombus
s A=
d1
d2 P=4xs
s
d1 = first diagonal
d2 = second diagonal
s = side
Rectangle A=lxw
d P=2(l+w)
w d=
l l = length
w = width
d = diagonal
Square A=sxs
d P=4xs
s
d=s
s s = side
d = diagonal
Kite
d2 A=
d1 P = The sum of all sides
Trapezium
A=
h P = the sum of all sides

4. GLOSSARY
Qudrilateral : bangundatarsegiempat
Parallelogram : jajarangenjang
Rhombus : belahketupat
Rectangle : persegipanjang
Square : persegi
Kite : layang – layang
Trapezium : trapezium
Parallel : sejajar
Perpendicular : tegaklurus
Bisector angle : garisbagisudut yang membagisudutmenjadisamabesar
Diagonal : garis yang dihubungkandariduatitiksudut yang berlawanan
Line of symmetry : simetrilipat
Rotational symmetry : simetriputar
Isosceles triangle : segitigasama kaki
Perimeter : keliling
Area : luas
Width : lebar
Side : sisi
Adjacent angle : sudutsepihak / jumlahnya 180 derajat
Base : alas
Height : tinggi