Google Classroom
GeoGebraAula GeoGebra

From Secants to Tangents

1. Move point R closer to P. What do you notice? 2. Click on the line QP in the side margin (a red secant line should now appear passing through Q and P). Move point Q closer to P. What do you notice? 3. Click on the line QR in the side margin (a green secant line should now appear passing through Q and P). Move point Q and R closer to P. What do you notice?