Let’s start off with understanding the problem.
- Looking at the problem, (I see you used khan academy) we can tell that 100° and x° look almost the same. We call these congruent angels.
- To make sure they are congruent, we know that a line is 180° and that’s only 100°. This makes both the other un-known angles on the opposite sides of 100° and x° as 80°.
Thus, x = 100°
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Make sure to not mistype the answer! I did that and well, had to restart. If you have any questions, type it in the comments below. Thanks! -Doodle
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