10-6 Secants, Tangents, and Angle Measures (are ALL

related)

Chord

A

B

“SECANT”

A

B

F

A

B

C

D

12

m 2 = ½(mAD + mBD)

ACD = ½(mABC)

AB

C D

Outside Angle

• An outside angle is always half of the positive difference between the two arcs.

A

Outside Angle• An outside angle is

always half of the positive difference between the two arcs.

L