Video Transcript
What is the intersection between segment π΅π΅ dash and the plane π΄π΅πΆ?
Well letβs first consider the plane π΄π΅πΆ. This has three vertices π΄, π΅, and πΆ and three edges or line segments π΄π΅, π΅πΆ, and πΆπ΄. Now letβs consider the line segment or edge π΅π΅ dash.
This has two vertices π΅ and π΅ dash and has just one line from π΅ to π΅ dash. Does this line segment intersect the plane at a vertex or at an edge?
Well the only points of intersection between the segment and the plane is at the vertex or point π΅. Therefore, the intersection is π΅.
We can write this as π΅π΅ dash intersects π΄π΅πΆ at π΅. The only point or vertex that appears in both parts of the question is point π΅.