Solve for x.
3.rº
80°
20°
A. 10
B. 20
C. 50
D. 80
2 answers:
Answer:
x = 20°
Step-by-step explanation:
The angle measures should add up to 180 degrees. So that leaves us with 100 degrees left to find if we take out the 80 given.
3x + 2x simplifies to 5x. 5x must equal 100.
100/5 = 20.
Therefore x = 20.
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