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סוסדיטרידGiven: AC I BD and BD bisects AC.Prove: AABD ACBD.StepStatementReasonAC I BDBD bisects ACGiven1tryType of StatementBАD

סוסדיטרידGiven: AC I BD and BD bisects AC.Prove: AABD ACBD.StepStatementReasonAC I-example-1
User Ken Alton
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Because BD bisects AC, we assure that the angle ABD==CBD

Now, if ABD==CBD and we know ADB=90° and CDB=90°, we can assure the remain angles must be equal: ACB==CAB

Therefore, the triangles ABD and CDB are similar. they have the same angles, they share one side, and another side is equal (AD==DC)

the triangles ABD and CDB are similar because they have all their angles equal and at least two of their sides measure the same distance


\measuredangle ABD=\measuredangle DBC

User Brosig
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