IMO- Mathematics Olympiad (SOF) Class 10: Questions 867 - 872 of 958

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Question number: 867

» Trigonometry & Applications

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.

9.86

c.

9.02

d.

2.5

Question number: 868

» Trigonometry & Applications

MCQ▾

Question

If then value of is________

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 869

» Trigonometry & Applications

MCQ▾

Question

If is equal to________

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 870

» Trigonometry & Applications

MCQ▾

Question

The top of two poles of height and are connected by a wire. If the wire makes an angle of with horizontal, then the length of the wire is________

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 871

» Trigonometry & Applications

MCQ▾

Question

The length of a string between a kite and a point on the ground is . If the string makes an angle with level ground such that how high is the kite?

Choices

Choice (4) Response

a.

b.

44.96m

c.

d.

76.96m

Question number: 872

» Trigonometry & Applications

MCQ▾

Question

The angles of depression of two ships from the top of a lighthouse are towards east. If the ship are 50m apart, the height of the lighthouse is________.

Choices

Choice (4) Response

a.

b.

c.

d.

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