# Mathematics-Trigonometry (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 1 - 7 of 14

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## Question number: 1

» Mathematics » Trigonometry

Appeared in Year: 2013

MCQ▾

### Question

The value of tan 1° tan2° tan3°……. tan 89° is

### Choices

Choice (4) Response

a.

0

b.

0.5

c.

2

d.

1

## Question number: 2

» Mathematics » Trigonometry

MCQ▾

### Question

The shadow of a tower is 15 m, when the Sun’s elevation is 30°. What is the length of the shadow, when the Sun’s elevation is 60°?

### Choices

Choice (4) Response

a.

4 m

b.

3 m

c.

6 m

d.

5 m

## Question number: 3

» Mathematics » Trigonometry

MCQ▾

### Question

A tower stands vertically on the ground. From a point on the ground which is 30 m away from the foot of a tower, the angle of elevation of the top of the tower is found to be 45°. The height of the tower is

### Choices

Choice (4) Response

a.

30 m

b.

28 m

c.

35 m

d.

32 m

## Question number: 4

» Mathematics » Trigonometry

MCQ▾

### Question

The points (2,2), (6,3) and (4,11) are the vertices of

### Choices

Choice (4) Response

a.

an equilateral triangle

b.

a right angled triangle

c.

an isosceles triangle

d.

a scalene triangle

## Question number: 5

» Mathematics » Trigonometry

MCQ▾

### Question

In the given figure, . Find the value of y.

### Choices

Choice (4) Response

a.

72°

b.

79°

c.

74°

d.

77°

## Question number: 6

» Mathematics » Trigonometry

MCQ▾

### Question

If the length of shadow of a pole on a level ground is twice the length of that pole, then the angle of elevation of the sun is

### Choices

Choice (4) Response

a.

45°

b.

30°

c.

60°

d.

None of the above

## Question number: 7

» Mathematics » Trigonometry

MCQ▾

### Question

If then value of x in ∆ABC is

### Choices

Choice (4) Response

a.

24°

b.

12°

c.

30°

d.

28°

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