1. Angle relationships in circles.
Module 15 Graphic Organizer Name: _____________________________________
Angle relationships in circles.
∠𝐴𝐶𝐵 is a ______________ angle; its measure is ____________ the measure of 𝐴𝐵 .
∠𝐴𝐷𝐵 is an ______________ angle; its measure is ____________ the measure of the minor arc 𝐴𝐵 .
Opposite angles of an inscribed quadrilateral are always: ________________.
𝑚∠𝐴+𝑚∠𝐶 = _____________
𝑚∠𝐵+𝑚∠𝐷 = _____________
∠𝐸 is created by the intersection of ____________ AB and CD.
𝑚∠𝐶𝐸𝐴 is equal to 𝑚 𝐴𝐶 ____ 𝑚 𝐵𝐷 divided by 2.
∠𝐸 is created by the intersection of ____________ AE and CE.
𝑚∠𝐸 is equal to 𝑚 𝐴𝐶 ____ 𝑚 𝐵𝐷 divided by 2.
∠𝐶 is created by the intersection of ____________ AC and ____________DC.
𝑚∠𝐶 is equal to 𝑚 𝐴𝐷 ____ 𝑚 𝐵𝐷 divided by 2.

2. Segment relationships in circles.
Segments AX and BX are both called ________________.
Segment AX and BX are _______________.
Segments AC and BC are both called ________________.
Segment AC and BC are _______________.
Both ∠𝐴 and ∠𝐵 have a measure of ___________.
∠𝑋 and ∠𝐶 are __________________.
Segments CD and AB are both called ________________.
______ x ______ = ______ x _______
Segments AE and CE are both called ________________.
______ x ______ = ______ x _______
Segment AC is called a ________________.
Segment DC is called a ________________.
______ x ______ = ______ 2