5
QuizMultiple Choice
4.1 Linear Pairs and Vertical Angles
Question 5 • TPS-202627-MTH-Geometry 1A-CR
Given: mEDF = 120°; mADB = (3x)°; mBDC = (2x)°Prove: x = 24
Answer
A
vertical angles are congruentB
substitutionC
definition of congruencyD
definition of equality