Answer: 43.25?
Step-by-step explanation:
7.
If c = 16
that means the equation is
16 - 9
which is 7
so 7
The answer is 60 degrees angle
Supplementary means it adds up to 180 degrees.
So if one side is 31 degrees, you would need to subtract that from 180 to find the other side.
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180 - 31 = 149
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The other angle would be 149 degrees.