Respuesta:
E) 20°
Explicación paso a paso:
x + 2x + 6x = 180°
9x = 180°
x = 180°/9
x = 20°
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Respuesta:
E) 20°
Explicación paso a paso:
x + 2x + 6x = 180°
9x = 180°
x = 180°/9
x = 20°