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=>2a = 72
a = 72/2
a = 36
=>3b = 24
b = 24/3
b = 8
m∠BCA = m∠DAC y m∠BAC = m∠DCA ya que las partes correspondientes de triángulos congruentes son iguales.
→ 3B = 24
B = 8°
→ 2A = 72
A = 36°
Por tanto el valor de a es 36° y el valor de b es 8°