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2019 Grade 08 Maths Second Term Paper English Medium Vadamaradchy Zone

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Zonal Education Office, Vadamaradchy

SECOND TERM EXAMINATION-2019


Grade - 08 MATHEMATICS Time : 2.30 hrs.

Index No.: Marks :

1) How many axis of symmetry are there in an equilateral triangle.

2) Write down the centrury to which the day of 2019.07.20 belongs.

3) If 900ml of water is used from 2l 750ml. Find the remaining amount of water in ml.

4) Write the next two terms of the number pattern 3 , 1 , -1 , -3, -5 , ....... ,........

5) Simplify 4x+ 3 - 2x - 6

x-1
6) Find the perimeter of this triangle.
x+2
7) The mass of the lorry is 62.58t. If 8t flour is loaded into the lorry. Find the total mass.

8) If 375 students are boys out of 500 students in a school. Find the percentage of girls.

9) PQ is a straight line If a = 70o

Find the magnitude of b and c. b


a
P Q
10) Write 0.125 as fraction and simplest form
c
11) Remove the brackets and simplify. 3(2a+b) - 2(2a- b)

12) If 4 students are represented by the symbol Indicate 18 students in the picture graph.

13) Find the value of 48 0.8

14) Write the two platonic solids which has a triangular faces.

15)
5cm

area of square is 64cm2 Area of rectangle is 60cm2


Write the difference between the length of the above figures.
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16) Find the value of 8 - (-2) + 3

17) Factorise c(a - b) - d (a - b)

18) Solve : 3a - 1 = 5

19) Fill in the cage.

2 : 5= : 15

20) Find the value of

(20x2=40 marks)

PART - II

Answer the first question and any other four questions.

1)

Activity I
Activity II
The above activities I , II are done by angles of triangle and quaderilateral.
i) From the activity I , which is the sum of the interior angles of triangle.
ii) From the activity II which is the sum of the interior angle of quadrilateral.
D
iii) Find the sum of interior angle of a pentagon ABCDE
from the conclusion of question (I) by connect the
E C
vertices C , D with A.
iv) a) Find the magnitude of x.
A B
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x

70o
130o
b)
50o Find the magnitude of x.
2x

70o x

c) Find the magnitude of x and y x


45o

2y

y 55o
v) PQRS is a regular polygon. If PQ =10cm. Find the area of PQRS.
(2+2+3+6+3)

2) a) i) Write the general terms of the number pattern is 5 , 8, 11, 14 , .............

ii) Which is the 20th term.

b) Simplify

i) 1.43 x 5.2 ii) 76.85 10

iii) 76.85 100

iv) If A packet of toothpaste weight is 70.6g. Find the weight of 12 such packets.

(2+2+2+1+2+2)

3) a) Solve :

b) i) Find the perimeter of this rectangle in the terms of x


2x -3
ii) If the perimeter of rectangle is 40cm. Find the value

of x and then find the length and breadth. x+2

c) A = { Prime numbers less than 10}

i) Write the elements of set A.

ii) Find n(A)

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iii) Fill in the suitable symbol from , in the blank 6 _____ A

(2+2+3+2+1+1)

4) Simplify:

a) i) ii) iiiii)(

iii) iv)

b) If cloth is needed to sew a pair of trousers for a student. Find the number of pair
of trousers that can be sawn from 50m cloth.

(2+2+2+2+3)

5) a) Fractorise

i) 81 - 3a2

ii) 7a2b - 3ab + 2ab2

iii) Write 81x2 - 36 as difference of two squares.

b) If a = 2 , b = -1 find the value of a2 + 2ab

c) i) Writre 43 as a power of 2

ii) Write 43 x 36 as a power of product

(2+2+2+2+1+2)

6) i) Find the magnitude of a ii) Find the magnitude of x

110o

160o 2x

130o 3x
110o
iii) Find the magnitude of p and q iv) Prove that d = a + b (2+2+4+3)

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40o b

75o

p q a
7) a) i) Write 0.7 as a percentage c d
ii) The cost price of a clock is Rs.2000. If A trader sells with a profit of 15% Find the
selling price.

iii) In a certain number of oranges, If 75% number of orange is 54. Find the total number
of oranges.

b) In the mixture the ratio of cement and gravel is 1 : 4 and the ratio of gravel and sand 3 :2

i) Find the ratio between cement gravel and sand

ii) Find the quantity of cement gravel and sand in the mixture of 92 pans.

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