Respuesta :

Answer:

A equals to 114

Step-by-step explanation:

A and B are equal to each other therefore you can find x which is 17, then multiply 6(7)+12

Answer:

∠A = 114°

Step-by-step explanation:

Since ∠A = ∠B

[tex]6x + 12 = 3x + 63[/tex]

[tex]6x - 3x = 63 - 12[/tex]

[tex]3x = 51[/tex]

[tex]x = \frac{51}{3}[/tex]

[tex]x = 17[/tex]

⇒∠A = 6 x 17 + 12 = 114°

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