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campbell_stBest ResponseYou've already chosen the best response.0
well looks like circle geometry call the let X be the intersection of BD and AC in Tri DBC and tri CBA angle BAC = angle BDC angles standing on the same are are equal. Angle BXA = angle CXD vertically opposite angles. AB = CD equal angles subtend equal chords. therefore tri DBC is congruent to tri CBA (Angle Angle Side test) hence BD = AC corresponding sides in congruent triangles.
 2 years ago

louis413Best ResponseYou've already chosen the best response.1
how u say BAC are congruent?? by what?
 2 years ago

campbell_stBest ResponseYou've already chosen the best response.0
there are 4 tests for congruent triangles, 1. Side, Side Side 2. Side Angle Side 3 Angle Angle Side 4 Right Hypotenuse Side.. if the 2 triangles are congruent... all corresponding sides and angles are equal
 2 years ago

louis413Best ResponseYou've already chosen the best response.1
your saying "angle BAC = angle BDC angles standing on the same are are equal" by what????.
 2 years ago
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