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Mathematics, 10.02.2020 22:26 andy963936

What is the missing reason in step 3?
GermZEDF = 120°: m ZADB = (3x)"; mZBDC = (2x)
Prove. x = 24
Reasons
(OU
Orven
120
ö
(3x)"
Statements
MZEOF=120
MZAOB - (3x)
rm BDC- (24)
EDF and ADC are vert 25
ZEOF ADC
4 ZADC - MLADB. mBOC
MZEDF - MZADC
MEDF - MADB - MBDC
120 - 3x-24
8 120 - 5x
94-24
(2x)
2 def of vert 25
37
4 add post
5 det of
6 substitution
substitution
8 addition
19 di prop of ea
vertical angles are congruent
substitution
definition of congruency
definition of equality
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What is the missing reason in step 3?
GermZEDF = 120°: m ZADB = (3x)"; mZBDC = (2x)
Prov...
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