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Given: mAngleEDF = 120°; mAngleADB = (3x)°; mAngleBDC = (2x)° Prove: x = 24

what is the missing reason in step 3?

a. vertical angles are congruent
b. substitution
c. definition of congruency
d. definition of equality

Given mAngleEDF 120 mAngleADB 3x mAngleBDC 2x Prove x 24 what is the missing reason in step 3a vertical angles are congruentb substitutionc definition of congru class=
Given mAngleEDF 120 mAngleADB 3x mAngleBDC 2x Prove x 24 what is the missing reason in step 3a vertical angles are congruentb substitutionc definition of congru class=

Respuesta :

s1m1

Answer:

a

Step-by-step explanation:

step 3 is a. because vertical angles are congruent

when you intersect 2 lines they form 2 pairs of vertical angles that are congruent.  

Answer:

Vertical angles are congruent

Step-by-step explanation:

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