Si tienes un cateto opuesto de 8 cm y una hipotenusa de 10 cm sen(a) = 8 cm /10 cm = 0.8 (sin unidades) Puedes usar Google para encontrar el ángulo (función arcoseno) que es opuesto al lado de 8 cm aseno(0.8) = 53.13º Ésto lo puedes hacer con calculadora ó con tablas Si tienes el cateto adyacente usas la función arcocoseno, inversa del coseno acos(0.8) = 36.87º Te puede ayudar recordar que ambos ángulos agudos suman 90º.
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