# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 852 - 857 of 1484

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## Question number: 852

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MCQ▾

### Question

If is an equilateral triangle with side 6 cm, then the area of triangle formed by joining its mid points is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 853

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MCQ▾

### Question

The point (9, -6) is at a distance of ________ units from X-axis.

### Choices

Choice (4)Response

a.

6 units from negative direction

b.

9 units from positive direction

c.

12 units from negative direction

d.

All of the above

## Question number: 854

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MCQ▾

### Question

The top of a broken tree has its top end touching the ground at a distance 30 m from the bottom, the angle made by the broken end with the ground is . Then length of broken part = ________.

### Choices

Choice (4)Response

a.

m

b.

m

c.

m

d.

m

## Question number: 855

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MCQ▾

### Question

An aero plane at an altitude of 150 m observes the angles of depression of opposite points on the two banks of a river to be and . The width of the river is ________.

### Choices

Choice (4)Response

a.

180.6 m

b.

236.7 m

c.

245.9 m

d.

98.2 m

## Question number: 856

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MCQ▾

### Question

In a single throw of two dice, the probability of getting a sum of 7 is

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question number: 857

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MCQ▾

### Question

The probability for a randomly selected number out of 1,2, 3,4, …. , 30 to be a prime number is

### Choices

Choice (4)Response

a.

b.

c.

d.

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