1. Isabelle is flying a kite on a windy day. When the kite is 15 mathrm{~m} above ground, it makes an angle of 50^{circ} with the horizontal. If Isabelle is holding the string 1 mathrm{~m} above the ground, how much string has she released? Round your answer to the nearest metre.

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Step:1 ：Let the length of the string be L, the height of the kite be H, and the angle of elevation be A. We have: (tan(A) = frac{H}{L - 1})Step:2 ：Given A = 50 degrees and H = 15 m, we need to find L.Step:3 ：Convert A to radians: (A_{rad} = 0.8726646259971648)Step:4 ：Using the tangent function, we get: (L = 13.5864944676592)Step:5 ：Round L to the nearest meter: (boxed{14})

Answer

Step: 1 ：Let the length of the string be L, the height of the kite be H, and the angle of elevation be A. We have: (tan(A) = frac{H}{L - 1})Step: 2 ：Given A = 50 degrees and H = 15 m, we need to find L.Step: 3 ：Convert A to radians: (A_{rad} = 0.8726646259971648)Step: 4 ：Using the tangent function, we get: (L = 13.5864944676592)Step: 5 ：Round L to the nearest meter: (boxed{14})

1. Isabelle is flying a kite on a windy day. When the kite is $15 \mathrm{~m}$ above ground, it makes an angle of $50^{\circ}$ with the horizontal. If Isabelle is holding the string $1 \mathrm{~m}$ above the ground, how much string has she released? Round your answer to the nearest metre.

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