The supplementary angle to 121 degrees is 59 degrees because supplementary angles sum to 180 degrees, and 180 - 121 = 59.
To identify a supplementary angle to 121 degrees, we need to find an angle that, when added to 121 degrees, will give us a total of 180 degrees because supplementary angles add up to 180 degrees.
To find this angle, subtract 121 from 180:
180 degrees - 121 degrees
= 59 degrees.
Therefore, the supplementary angle to 121 degrees is 59 degrees.
The probable question may be: "Identify a Supplementary Angle to
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