Intersecting Secants Theorem

​
PB×PA
7.00
PD×PC
7.00
Let P be a point outside a circle and PB and PD be two secants. Then PB
×
PA = PD
×
PC.
Drag the orange points to change the figure.

External Links

Chord (Wolfram MathWorld)
Secant Line (Wolfram MathWorld)

Permanent Citation

Jay Warendorff
​
​"Intersecting Secants Theorem"​
​http://demonstrations.wolfram.com/IntersectingSecantsTheorem/​
​Wolfram Demonstrations Project​
​Published: March 7, 2011