Program GALUS Di SDary 2009

8/9/2019 Program GALUS Di SDary 2009

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Q.1: Directed NumbersQ.1: Directed Numbers

17 ( 22 + 8)

= 17 ( 14 )

= 17 + 14

= 3


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Q.2: Directed NumbersQ.2: Directed Numbers

0.75 + ( + ) Answer in decimal.

= 0.75 + (0.625 + 0.25)

= 0.75 + 0.875= 1.625

4

1

8

5


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Q.3: Squares, Square Roots, Cubes andQ.3: Squares, Square Roots, Cubes andCube RootsCube Roots

!

27

8

v

v

!3

2

3

2

3

2

2

3

64

12.1

v

a)3

3

2

b)2

4

12.1

23.009.0


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Q.4: Number Patterns and SequencesQ.4: Number Patterns and Sequences

a)

b)

The first 5 Multiples of7 areThe first 5 Multiples of7 are

7, 14, 21, 28, 357, 14, 21, 28, 35

2

2

2

3

2 x 2 x 2 x 3 = 242 x 2 x 2 x 3 = 24

The LCM of 8 and 12 isThe LCM of 8 and 12 is8 12

4 6

2 3

1 3

1 1


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Q.5: Lines and AnglesQ.5: Lines and Angles

Solution:

X + 160 + 70 = 360

X = 360 160 - 70

X = 360 - 230

X = 130

Interior angles

(Supplementary)

7070


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Q.6: Lines and Angles + Linear EquationsQ.6: Lines and Angles + Linear Equations

Solution:

One whole turn angle = 360

2m + 90+ 80+ 72 = 360

2m = 360 90 80 72

2m = 118

m = 118 2m = 59

9090


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Q.7: Polygons (Exterior Angles) + Linear EquationsQ.7: Polygons (Exterior Angles) + Linear Equations

Solution:

Sum of exterior angles = 360

2x + 100 + 102 + 56 + 74 = 360

2x = 360 100 102 56 74

2x = 28

x = 28 2

x = 14

102102


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Q.8: Polygons (Interior Angles)Q.8: Polygons (Interior Angles)

Solution:

p is an interior angle of a regular pentagon

p= (n-2) x 180

np= 540 = 108

5

Sum of interior angles of a triangle = 180180

q = 180 - 72 - 72

q = 36

p - q = 108 - 36

= 72

108

180180--108108=72=72


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Q.9: Statistics (Pie Chart)Q.9: Statistics (Pie Chart)

Waja, 110

Wira, 100

Satria, 60

Gen-2, 90QQ

100360180

50!v

QQ60360

180

30!v

Angles of ectorsAngles of ectors

QQ110360

180

55!v

Wira:Wira:

Waja:Waja:

Satria:Satria:


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Q.10: Circle (Cyclic Quadrilateral)Q.10: Circle (Cyclic Quadrilateral)

Solution:

Sum of angles in a triangley + 60 + 70 = 180

y = 180 - 60 - 70

y = 180 - 130y = 50SupplementarySupplementary

(180(180))

7070


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Q.11: Statistics (Pictogram)Q.11: Statistics (Pictogram)

CompanyCompany Number ofCars SoldNumber ofCars Sold

Company T

Company U

Company V

Represents Cars sold

16

32

24

4


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Q.12: Statistics (Dual Bar Chart)Q.12: Statistics (Dual Bar Chart)

0

2

4

6

8

1012

14

16

18

Green Red Blue Yellow

Sport house

Represent

tv

es

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Program GALUS Di SDary 2009