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Mathematics 7 Online
OpenStudy (anonymous):

The internal bisector of angle A in a triangle ABC with AC>AB, meets the circumcircle T of the triangle in D. Join D to the centre O of the circle T and suppose DO meets AC in E, possibly when extended. Given that BE is perpendicular to AD, show that AO is parallel to BD.

ganeshie8 (ganeshie8):

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ganeshie8 (ganeshie8):

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