A boy is flying a kite by a string. If t...

A boy is flying a kite by a string. If the kite is at a height of 120 metres from the ground and the string makes an angle, `30^@` with the horizontal then the length of the string is

100metre

120metre

180metre

240 metre.

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UNITED BOOK HOUSE-Application of Trigonnometric Ratios : Heights of Distance-Exercise

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