Video: Determining the Relation between Angles Based on Their Positions

The two angles π΄π‘šπ· and π΅π‘šπΆ are called οΌΏ angles.

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Video Transcript

The two angles π΄π‘šπ· and π΅π‘šπΆ are called what angles. Here, we look to introduce some terminology. We say that given a pair of intersecting lines, the angles which are opposite to one another form a pair of vertically opposite angles. That means angle π΄π‘šπ·, which is this one, and π΅π‘šπΆ, which is this one, are vertically opposite to one another. Similarly, angle π΄π‘šπΆ, that’s this one, and π΅π‘šπ·, which is this one, are also vertically opposite to one another. So, the phrase that goes in the blank here is β€œvertically opposite.”

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