Un ángulo mide β si se cumple que:
SSSSS β + CCCCCC 2β = 200°. Calcular “β”
SSSSS β + CCCCCC 2β = 200°. Calcular “β”
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respuesta: 20
simplifica S y C
queda
S B + 2B = 200°
180-B+2B= 200°
B=200°-180°
B= 20°