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Q3. A kite is flying at a height of 60 m above the ground. The stringattached to the kite is temporarily tied to a point on the ground.The inclination of the string with the ground is 60°. Find the lengthof the string, assuming that there is no slack in the string |
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Answer» ⭐seg AB represents the distance of a kite from ground.∴ AB = 60 m seg AC represents the length of the string m ∠ ACB = 60º ❄In right angled ∆ ABC, ↪sin 600= side opposite to 600/Hypotenuse ∴ sin 600= AB/AC ∴ √3/2 = 60/AC ∴ AC = 120/√3 ∴ AC = (120/√3)× (√3/√3) ∴ AC = 40√3 m ∴ AC = 40 × 1.73 ∴ AC = 69.2 m ∴ The length of the string, assuming that there is no slack in the string is 69.2 m. |
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