Answer:
D+42*=180*
D=180-42
138
Step-by-step explanation:
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138 Degrees
Because it is adjacent to the 42 degrees, just subtract 42 from 180 to get 138 degrees.
Yes! Integers can be negative! -3, -4, -9, -2... You name it!
Answer: Possibly the first
Answer: The answer is the second one/b.
