This question is

inspired from Ex 9.1, 1 - Chapter 9 Class 10 - Applications of Trigonometry

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A circus artist is climbing from the ground along a rope stretched from the top of a vertical pole and tied at the ground. The height of the pole is 12 m and the angle made by the rope with ground level is 30°.
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Question 1
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## The distance covered by the artist in climbing the top of the pole is:

## (a) 24 m (b) 36 m

## (c) 28 m (d) 22 m

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Question 2
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## The length of BC is:

## (a) 24√3 m (b) 12√3 m

## (c) 2√3 m (d) √3 m

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Question 3
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## If sin (A + B) = √3/2 , then the value of (A + B) is:

## (a) 30° (b) 90°

## (c) 60° (d) 45°

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Question 4
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## In Δ ABC, given that ∠ A = 60° and ∠ C = 30°, then value of sin A cos C + cos C sin A is

## (a) 0 (b) ∞

## (c) 10 (d) 3/2

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Question 5
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## Which mathematical concept is used in this problem?

## (a) Trigonometry (b) Triangle

## (c) Circle (d) Mensuration