8
QuizMultiple Choice
Complementary and Supplementary Angles — Unit test
Question 8 • AZ-Common Core Geometry A
Given: mTRV = 60° mTRS = (4x)°Prove: x = 30What is the missing reason in step 3?
Answer
A
substitution property of equalityB
angle addition postulateC
subtraction property of equalityD
addition property of equality