# NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 15 - 21 of 2028

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## Question number: 15

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MCQ▾

### Question

In a ABC, M and N are midpoints of AB and AC, MN is produced to O such that MN = MO, then NOCB is:

### Choices

Choice (4) Response

a.

Square

b.

Parallelogram

c.

Rectangle

d.

Rhombus

## Question number: 16

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MCQ▾

### Question

Sum of two numbers is 45 and their difference is 19. Then the numbers are:

### Choices

Choice (4) Response

a.

20,25

b.

32,13

c.

26,19

d.

31,14

## Question number: 17

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MCQ▾

### Question

A diagonal of a rectangle is inclined to one side of the rectangle at . The acute angle between the diagonals is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 18

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MCQ▾

### Question

Choose the correct statement.

### Choices

Choice (4) Response

a.

Every quadrilateral is either a trapezium or a parallelogram or a kite.

b.

If the diagonals of a quadrilateral intersect at right angles, it is not necessarily a rhombus.

c.

The diagonals of a parallelogram are equal

d.

The diagonals of a rectangle are perpendicular to each other.

## Question number: 19

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MCQ▾

The value of is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 20

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MCQ▾

### Question

If AB and CD are two perpendicular diameters of a circle, then ACBD is a:

### Choices

Choice (4) Response

a.

Trapezium

b.

Rectangle

c.

Square

d.

Rhombus but not square

## Question number: 21

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MCQ▾

### Question

A rational number can be expressed as a terminating decimal if the denominator has factors:

### Choices

Choice (4) Response

a.

3 or 5

b.

2 or 5

c.

2,3 or 5

d.

None of the above

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