Engage NY Eureka Math 8th Grade Module 2 Lesson 13 Answer Key Eureka Math Grade 8 Module 2 Lesson 13 Exploratory Challenge Answer Key Classwork Concept Development m∠1+m∠2+m∠3=m∠4+m∠5+m∠6=m∠7+m∠8+m∠9=180° Note that the sum of the measures
