Circles - Tangent - Secant Segments

A few examples on how to find missing segments when a tangent and secant intersect outside a circle.

[john]

Thank you for this helpful video. I read the topic on the book but every time I did an exercise, it was wrong.

Watching this video made me realize what a shameful mistake I made. I failed to multiply the piece of the secant by the total sum of secant and instead, timed a piece outside the circle by a piece inside the circle.

Thank you.