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Mathematics 20 Online
OpenStudy (anonymous):

if arc EAB = 195 degrees and arc EC =75 degrees, what is the measure of angle EDC

OpenStudy (anonymous):

here is the diagram.

jimthompson5910 (jim_thompson5910):

have a look at this page and tell me if it helps or not http://www.mathwarehouse.com/geometry/circle/tangents-secants-arcs-angles.php

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