4
QuizMultiple Choice
Lesson 1.5: Linear Pairs and Vertical Angles
Question 4 • 26/27 GEOMETRY A
Given: mADE = 60° and mCDF = (3x + 15)°Prove: x = 15
Answer
A
Statement: 60 = 3x + 15; Reason: substitutionB
Statement: x = 15; Reason: subtraction property of equalityC
Statement: 60 = 3x + 15; Reason: transitive propertyD
Statement: x = 15; Reason: subtraction and division properties of equality