Geometry
Power of a Point Theorem (secant–tangent)
For a point outside a circle, PT^2 = PA·PB where PT is the tangent length and PAB is a secant; connects tangent-length to secant products.
0
Contest appearances
100
Practice problems
1–10
Difficulty levels
Drill this topic
Sign in and tell the coach to drill this knowledge point — it picks questions matched to your current level.