02 FORMULA MGG 1 2019

MATEMATIK PT3

MATHEMATICS FORMULAE

The following formulae may be helpful in answering the questions. The symbols given are the ones
commonly used.

NUMBERS AND OPERATIONS

1. am x an = amn 4. =
2. am ÷ an = amn
3. (a m ) n = amn

r

5. = (1 + )

n

6. = +

MEASUREMENT AND GEOMETRY

1. Area of rectangle = length x width 11. Volume of right prism
2. Area of triangle = 1 x base x height = cross sectional area x length

2 12. Volume of cuboid = length x width x height
3. Area of parallelogram = base x height
13. Volume of cylinder =  r 2h

4. Area of trapezium 14. Volume of cone = 1  r 2h
= 1 x (sum of parallel sides) x height
2 3

5. Pythagoras Theorem 15. Volume of sphere = 4  r 3
c2  a2  b2 3

6. Sum of interior angles of polygon 1

= n  2180  16. Volume of pyramid = x base area x height

7. Circumference of circle =  d = 2  r 3

17. arc length = angle subtended at centre
circumfere nce of circle 3600

8. Area of circle =  r 2 18. area of sector = angle subtended at centre
area of circle 3600
9. Curved surface area of cylinder
19. Scale factor, k = P ' A'
= 2 rh PA

10. Surface area of sphere = 4 r 2 20. Area of image = k 2 x area of object

RELATIONSHIP AND ALGEBRA

1. Distance = (x1  x 2 )2  (y1  y2 )2 change of speed

2. Midpoint (x,y) =  x1  x 2 , y1  y 2  3. Acceleration =
2 2
time taken
vertical distance

4. Gradient, m =

horizontal distance

STATISTICS AND PROBABILITY

1. Mean = sum of data 2. P(A’) = n(A' )
number of data n(S)

MODUL GERAK GEMPUR 1 2

MATEMATIK PT3

RUMUS MATEMATIK

Rumus-rumus berikut boleh membantu anda menjawab soalan. Simbol-simbol yang diberi adalah
yang biasa digunakan.

NOMBOR DAN OPERASI

1. am x an = amn 4. =
2. am ÷ an = amn
3. (a m ) n = amn

r

5. = (1 + )

n

6. = +

SUKATAN DAN GEOMETRI

1. Luas segiempat tepat = panjang x lebar 11. 11. Isipadu prisma tegak
= luas keratan rentas x panjang
2. Luas segitiga = 1 x tapak x tinggi 12.
2 12. Isipadu kuboid = panjang x lebar x tinggi

3. Luas segiempat selari = tapak x tinggi 13. Isipadu silinder = j2 t

4. Luas trapezium 14. Isipadu kon = 1 j2 t
= 1 x (hasil tambah dua sisi selari) x tinggi 3
2
15. Isipadu sfera = 4  j3
5. Teorem Pythagoras 3
c2  a2  b2
16. Isipadu piramid tegak
6. Hasil tambah sudut
1
pedalaman poligon = n  2180  = x luas tapak x tinggi

7. Lilitan bulatan = d = 2 j 3

panjang lengkok sudut pusat
17. =
lilitan bulatan 3600

8. Luas Bulatan = j2 luas sektor sudut pusat
18. =
9. Luas permukaan melengkung silinder luas bulatan 3600
= 2 jt
P'A'
10. Luas permukaan sfera = 4j2 19. Faktor skala, k =

PA

20. Luas Imej = k 2 x luas objek

PERKAITAN DAN ALGEBRA

1. Jarak = (x1  x 2 )2  (y1  y2 )2 perubahan laju

3. Pecutan =

masa yang diambil

2. Titik Tengah jarak mencancang

(x,y) =  x1  x 2 , y1  y 2  4. Kecerunan, m =
2 2
jarak mengufuk

STATISTIK DAN KEBARANGKALIAN

1. Min = hasil tambah nilai data 2. P(A’) = n(A' )
bilangan data n(S)

MODUL GERAK GEMPUR 1 3