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Circle Geometry - Alternate Segment Theorem

Author:
DavidA
Topic:
Angles, Circle, Geometry, Tangent Line or Tangent
An illustration of the Alternate Segment Theorem. Before highlighting the (tricky to see?) equal angles try to establish which you think they are. Circle Theorems http://www.geogebratube.org/student/c89/m1462/yryy

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