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From Secants to Tangents

Author:
Jennifer Gravel
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?

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  • G_7.03 Proving triangles similar
  • Comparing Fractions
  • G_7.02 Similarity transformations
  • G_10.04 Parallel and perpendicular lines_1b
  • A2_1.04 Solving quadratic equations with complex solutions

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