Usando coseno para calcular ángulos y lados (Cos = $\frac{a}{h}$ )

Now Playing:Usando coseno para calcular angulos y lados– Example 0

Determina los ángulos y lados usando la razón de Coseno:
1. Encuentra el ángulo $A$ y $B$ usando coseno:
2. Encuentra el valor de " $x$ " usando coseno:

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Usando coseno para calcular ángulos y lados (Cos = ah \frac{a}{h}ha​ )