Question Video: Identifying Adjacent Angles Mathematics • 7th Grade

Are ∠1 and ∠2 adjacent angles?


Video Transcript

Are angle one and angle two adjacent angles?

We say that angles are adjacent if they share a common vertex and a common side. The vertex is of course the endpoint of the rays that form the sides of the angle. Angle one is this one, and let’s highlight angle two in yellow. So do these two angles have a common vertex and a common side? Well, they have a vertex here that’s shared; it’s a common vertex. And in fact they have a common side here, so they share a vertex and a side, meaning yes, angle one and angle two are adjacent.

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