SOLUTION: TWO PROOFS FOR THE SAME PICTURE. Please explain. 1. Given: BD bisects AC, AB ≅ BC. Prove: angle C ≅ angle A 2. Given: BD is perpendicular to AC, AB ≅ BC. P

Algebra ->  Geometry-proofs -> SOLUTION: TWO PROOFS FOR THE SAME PICTURE. Please explain. 1. Given: BD bisects AC, AB ≅ BC. Prove: angle C ≅ angle A 2. Given: BD is perpendicular to AC, AB ≅ BC. P      Log On


   



Question 732383: TWO PROOFS FOR THE SAME PICTURE. Please explain.
1. Given: BD bisects AC, AB ≅ BC.
Prove: angle C ≅ angle A
2. Given: BD is perpendicular to AC, AB ≅ BC.
Prove: angle CBD ≅ angle ABD

Answer by MathLover1(20849) About Me  (Show Source):
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1. Given: BD bisects AC, AB ≅ BC.
Prove: angle C ≅ angle A

1.BD bisects AC, AB ≅ BC........given
2.AD ≅CD.........................def. of bisector
3.BD ≅BD.........................reflexive property
4. triangle ADB ≅BDC.............SSS
5.angle C ≅ angle A......CPCTC

2. Given: BD is perpendicular to AC, AB ≅ BC.
Prove: angle CBD ≅ angle ABD
1.BD is perpendicular to AC, AB ≅ BC.......given
2.angles ABD =angle BDC=90 ..............BD is perpendicular to AC
3. BD = BD............................ common
4. triangles ABD and CBD are ͭ............ ASA
5. angle CBD ≅ angle ABD ..........RHS congruency