Hey y'all can u help me on this
2 answers:
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Answer:
77
Step-by-step explanation:
Let's let the unknown number be x.
Supplementary angles add up to a total of 180 degrees. Since we already know one angle is 103, this means that:
Subtract 103 from both sides:
So, the measure of its supplementary angle is 77 degrees.
And we are done!