Answer: d) DF ≅ JH
<u>Step-by-step explanation:</u>
Side-Side-Side Congruency Theorem states that triangles are congruent if and only if their corresponding side lengths are congruent.
Given: EF ≅HI
Given: DE ≅IJ
Missing: DF ≅ JH
Well h would equal 2A over a+b