In today's class we went over 3 theorems and 1 definition.

Theorem 9-14:

This theorem says that if two secants intersect inside a circle, then (In this diagram):

BF x FD = EF x FC

Theorem 9-15:

This theorem states that if two secants from the same exterior point are in a circle then (In this case):

FE x FB = FD x FC

Theorem 9-16:

This theorem says that if a secant and a tangent come from the same point that is outside the circle then (In this case):

CE^2 = CB x CD

Definitions:

When two secants come from a common point outside the circle then (In this diagram):

CB & CD are Secant Segments

FB & ED are Chords

CF & CE are External Secant Segments

After that Mrs. Saatkamp assigned the homework:

p. 495 #14-32 all EXC. 28 + #37