Statement | Reason
1) m<DEF = m<KEF = 44° | Definition of angle bisector
2) m<DEK = m<DEF + m<KEF | Parts- Whole postulate
3) m<DEK = 44° + 44° = 88° | algebra
4) DE = KE | given
5) EF = EF | reflexive property
6) ΔDEF ≅ ΔKEF | side-angle-side
7) DF = KF | corresponding parts of congruent . triangles are congruent
8) KF = [tex]\frac{1}{2}[/tex]DK = 8 | Algebra, 7
*Note don't forget to put the degree sign on degree measures
