# Mathematics-Circles [NSTSE (National Science Talent Search Exam- Unified Council) Class 10]: Questions 1 - 4 of 43

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## Question number: 1

» Mathematics » Circles

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MCQ▾

### Question

The area of triangle with side ‘a’ is , where a = 6 cm. Then its altitude is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2

» Mathematics » Circles

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MCQ▾

### Question

In the given figure and then is ________.

### Choices

Choice (4)Response

a.

4: 9

b.

9: 4

c.

16: 81

d.

81: 16

## Question number: 3

» Mathematics » Circles

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MCQ▾

### Question

If the ratios of areas of two similar triangles are 9: 16 then the ratios of their corresponding angle – bisector segments is ________.

### Choices

Choice (4)Response

a.

3: 4

b.

9: 16

c.

4: 3

d.

16: 9

## Question number: 4

» Mathematics » Circles

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MCQ▾

### Question

The area of two similar triangles are 25 , 49 . Altitude of first one is 5 cm. Then altitude of second in cm is

### Choices

Choice (4)Response

a.

7

b.

5

c.

9

d.

6

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