| Question | Answer |
| Reflexive Property | ∠2≅∠2 |
| Segment Addition | AB + BC = AC |
| Segment Subtraction | AC - BC = AB |
| Substitution | ∠1 = ∠2, ∠2 = ∠3 ∴ ∠1 = ∠3 |
| Angle Addition | ∠ABC + ∠CBD = ∠ABD |
| Angle Subtraction | ∠ABD - ∠ABC = ∠CBD |
| A segment bisector makes a midpoint | M is the midpoint (mdpt) pf a segment (AB) |
| Def. of a midpoint | AM ≅ MB |
| Def. of an angle bisector | ∠3 ≅ ∠4 |
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