Answer:
12 degrees
Step-by-step explanation:
The sum of a triangle is always going to be 180 degrees, so we would set up an equation for this:
46 + 3u + 98 = 180
Then, we solve from there for the value of 'u'.
144 + 3u =180
3u = 36
u = 36 / 3
u = 12
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