Statements
Reasons
1. ZABC is rt. 2
1. A
Identify the missing p...
Mathematics, 25.11.2020 01:00 trvptrav
Statements
Reasons
1. ZABC is rt. 2
1. A
Identify the missing parts in the proof.
Given: ZABC is a right angle.
DB bisects ABC.
Prove:mZCBD = 45°
2. DB bisects ABC
2. given
3. def. of rt. 2
3. B
A:
4. m ABD = mZCBD
4. def. of bis.
B:
C:
D:
5.C
5. M_ABD + m2CBD = 90°
6. m2CBD + m2CBD = 90°
7. D
6. subs. prop.
7. add.
8. div. prop.
8. mZCBD = 45°
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