Video Transcript
Are angle one and angle two
adjacent angles?
We might begin by recalling that
adjacent means next to and looking to see whether angles one and two are next to one
another. That’s not quite enough though. We actually say that adjacent
angles have a common vertex and a common side, where the vertex of an angle is the
endpoint of the rays that form the sides of the angle.
Let’s begin by finding angle one in
our diagram. It’s this one here. Angle two is here. We ended up actually having to
overlap our pink and yellow lines, and so we see that they have a common side. It’s this one. But do they share a common
vertex? Well, no, angle one’s vertex is
here whereas angle two’s vertex is all the way up here. And so we say no, they are not
adjacent angles.
