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Razão entre ângulos

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Na figura, AB = BD e os triângulos  ABC e BDE são congruentes. Calcule a razão entre os ângulos BCA E DAC.



(A) 1:1
(B) 3:2
(C) 1:2
(D) 1:3
(E) 2:1

Gab: Letra E. Grato desde já.

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