Respuesta :

Answer:

30

Step-by-step explanation:

step by step is in photo!

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Answer:

< CAB + < DAC = < DAB

or, 2x + ( x + 7 ) = 52

or, 2x + x + 7 = 52

or, 3x + 7 = 52

or, 3x = 52 – 7

or, x = 45/3

or, x = 15

Now,

< CAB = 2x = 2 x 15 = 30

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