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Use the relationship between supplementary angles to determine the value of y degrees if x degrees = 125 degrees.

A. 305 degrees
B. 55 degrees
C. 35 degrees
D. 125 degrees

1 answer

A. 305 degrees

Supplementary angles add up to 180 degrees. Since x = 125 degrees, then the supplementary angle would be 180 - 125 = 55 degrees. Therefore, y = 55 degrees.