IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 877 - 882 of 968

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Question number: 877

» Trigonometry & Applications

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MCQ▾

Question

If and , then ________.

Choices

Choice (4) Response

a.

- 1

b.

1

c.

0

d.

2

Question number: 878

» Trigonometry & Applications

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MCQ▾

Question

If and , then ________.

Choices

Choice (4) Response

a.

- 1

b.

2

c.

1

d.

0

Question number: 879

» Trigonometry & Applications

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MCQ▾

Question

An observer tall is away from a chimney. The angle of elevation of he top of the chimney from her eyes is the height of the chimney is________.

Choices

Choice (4) Response

a.

0.52

b.

2.5

c.

1.45

d.

9.86

Question number: 880

» Trigonometry & Applications

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MCQ▾

Question

The top of a broken tree has its top end touching the ground at a distance 9m from the bottom, the angle made by the broken end with the ground is Then length of broken part is________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 881

» Trigonometry & Applications

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MCQ▾

Question

The top of a broken tree has its top end touching the ground at a distance 18m from the bottom, the angle made by the broken end with the ground is Then length of broken part is________.

Choices

Choice (4) Response

a.

36

b.

24

c.

14

d.

12

Question number: 882

» Trigonometry & Applications

Edit
MCQ▾

Question

An observer tall is away from a chimney. The angle of elevation of he top of the chimney from her eyes is the height of the chimney is________.

Choices

Choice (4) Response

a.

2.2

b.

2.5

c.

9.02

d.

1.45