Missy is constructing a fence that consists of parallel sides line ab and line ef. complete the proof to explain how she can show that m∠akl = 116° by filling in the missing justifications. statement justification line ab ∥ line ef m∠klf = 116° given m∠klf+ m∠bkl = 180° 1. m∠bkl + m∠akl = 180° linear pair postulate m∠klf + m∠bkl = m∠bkl + m∠akl 2. m∠klf = m∠akl subtraction property m∠akl = m∠klf symmetric property m∠akl = 116° substitution property 1. alternate interior angles theorem; 2. substitution property 1. definition of complementary angles; 2. substitution property 1. definition of supplementary angles; 2. transitive property 1. same-side interior angles theorem; 2. transitive property