A kite is flying at a height of 30 metres from the level ground, attached to a string inclined at $60^\circ$ to the horizontal. The length of string is ______.

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A kite is flying at a height of 30 metres from the level ground, attached to a string inclined at $60^\circ$ to the horizontal. The length of string is underlinebb(20sqrt(3) m). Explanation: Let the string length be L. The vertical height = L · sin $60^\circ$ = 30. Since sin 60^circ = sqrt(3)/2, L = 30/(sqrt(3)/2) = 60/sqrt(3) = 20sqrt(3) m

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