Given 3 3 Given 4 4 Reflexive Property 5 ADC CBA 5 SSS 2 2 4 6 DAC BCA 6 CPCTC

# Given 3 3 given 4 4 reflexive property 5 adc cba 5

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2. ??̅̅̅̅??̅̅̅̅, ??̅̅̅̅??̅̅̅̅2. Given 3. ??̅̅̅̅??̅̅̅̅, ??̅̅̅̅??̅̅̅̅3. Given 4. ??̅̅̅̅??̅̅̅̅4. Reflexive Property 5. ADC CBA 5. SSS (2, 2, 4) 6. DAC BCA 6. CPCTC 7. DFA and BEC are right angles 7. Def of perpendicular lines 8. DFA BEC 8. Right angles are congruent 9. AFD CEB 9. AAS (6, 8, 2) 10. ??̅̅̅̅??̅̅̅̅10. CPCTC 2. Statements Reasons 1. ABC, ??̅̅̅̅is median and altitude to ??̅̅̅̅1. Given 2. D is the midpoint of ??̅̅̅̅2. Def of median 3. ??̅̅̅̅??̅̅̅̅3. Def of midpoint 4. ??̅̅̅̅??̅̅̅̅4. Def of altitude 5. ADB and CDB are right angles 5. Def of Perpendicular Lines 6. ADBCDB 6. Right angles are congruent 7. ??̅̅̅̅??̅̅̅̅7. Reflexive Property 8. ADB CDB 8. SAS (3, 6, 7) 9. ??̅̅̅̅?? ̅̅̅̅̅9. CPCTC 3. Statements Reasons 1. 1 5, 2 6 1. Given 2. 1 + 2 5 + 6 2. Addition Postulate (1) 3. DBA ECA 3. Substitution Property 5. DBA supp 3; ECA supp 4 5. Linear Pair Theorem 6. 3 4 6. Congruent Supplements Theorem 7. ??̅̅̅̅??̅̅̅̅7. 8. ABC is isosceles 8. If the legs of a triangle are congruent, then triangle is isosceles.
4. 5.
6. Statements Reasons