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Given that angle ABD and angle DBC are adjacent angle, the value of angle ABC is 120 degrees.
Given the data in the question;
Since angle ABD and angle DBC are adjacent angle, there addition will give us the value of angle ABC.
∠ABD + ∠DBC = ∠ABC
We substitute in the given values
61° + 59° = ∠ABC
∠ABC = 120°
Given that angle ABD and angle DBC are adjacent angle, the value of angle ABC is 120 degrees.
Learn more about adjacent angles here: https://brainly.com/question/12838185
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