The measure of the angles in the triangle will be 24° and 71°.
Based on the information given, it should be noted that angle ABC = 3x - 1.
Therefore, this will be:
3x - 1 = x + 47
Collect like terms
3x - x = 47 + 1
2x = 48
Divide both side by 2
2x/2 = 48/2
x = 24
ABD = 24°
ABC = 3x - 1
= 3(24) + 1.
= 71°
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