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Geometry 17 Online
OpenStudy (anonymous):

Finding Arc measures with chords

OpenStudy (anonymous):

Directrix (directrix):

This is the theorem needed to work the problem: If two chords intersect inside a circle, then the measure of the angle formed is one half the sum of the measure of the arcs intercepted by the angle and its vertical angle.

Directrix (directrix):

What is the size of the angle marked with ? |dw:1360534211577:dw|

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