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Question
technology required. mai is 80 feet away from the eiffel tower. to see the top, she has to look up at an angle of 85.8 degrees. how tall is the eiffel tower to the nearest foot? type your answer in the box. feet
Step1: Identificar el triángulo rectángulo
Tenemos un triángulo rectángulo donde la distancia de Mai a la torre (80 pies) es el cateto adyacente ($x = 80$) y la altura de la torre ($h$) es el cateto opuesto al ángulo de elevación ($\theta = 85.8^\circ$). Usamos la tangente: $\tan(\theta)=\frac{h}{x}$.
Step2: Despejar y calcular $h$
Despejamos $h = x \cdot \tan(\theta)$. Sustituimos $x = 80$ y $\theta = 85.8^\circ$. Calculamos $\tan(85.8^\circ)\approx12.706$. Entonces $h = 80 \cdot 12.706\approx1016.48$. Redondeamos a la unidad: $h\approx1016$.
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1016