Plz I really need help. A. 1 Alternate Interior Angles Theorem; 2. Definition of Congruence B. 1 Alternate Exterior Angles Theorem; 2. Substitution Property C. 1 Definition of Congruence 2. 1 Alternate Interior Angles Theorem D. 1. Substitution Property 2. Alternate Exterior Angles Theorem The ending says by filling in the missing justifications
1. Alternate Interior Angles Theorem
2. Definition of Congruence
Alternate interior angles are formed when you have two parallel lines, and a transversal. They are inside the parallel lines (hence the "interior") and they are on alternate sides of the transversal. This fits the description of angles ELK and BKL. Alternate interior angles are congruent whenever we have parallel lines like this.
The definition of congruence is basically saying if two angles are congruent, then they have the same measure. This is what it means to go from the statement to the statement . The small 'm's indicate "measure of"
its 60-10+x why, because she bought the dress with $60 and she received $10 dollars back. We don't know the variable.
48/40 = 1 8/40
1 8/40 Simplify to 1 1/5
Hope this helps!