Use the proof for Questions 9 and 10 Given L is the midpoint of JM JK NM Prove AJKL AMNL Proof Statements 1 L is the midpoint of JM 2 JL ML 3 JK MN 4 LJKL 5 LJLK 6 AJKLAMNL LMNL L MLN Reasons 1 Given 2 Definition of midpoint 3 Given 4 Alt int s are 5 Question 9 6 Question 10 9 What is the reason for ZJLK LMLN A definition of midpoint B corresponding angles C vertical angles D alternate interior angles 10 What is the reason for AJKL AMNL M 9