Answer:
100º
Explanation:
Since these angles are on a single straight line, both of their measures should add up to 180º.
180º - 80º = 100º
Hence the measure of the unknown angle is 100º.
Answer: n = 100°
These two angles are supplementary angles. This means that when added togther, they will be equal to 180 degrees. With this information, we can subtract 80 degrees from 180° to find n.
n = 180° - 80°
n = 100°
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