Google Classroom
GeoGebraGeoGebra Classroom

Parallel Lines Cut by a Transversal

In this activity, line AB, line CF, and line GH have been truncated for ease of exploration. Assume that line AB is parallel to line CF. To the left are the angle tools that correspond to ∡ADG and ∡GDB. Move the angle tools onto the parallel line cut by a transversal to explore relationships between different angles.