While babysitting her neighbor's children, Elisa observes that the supports on either side of a park swing set form two sets of triangles. Using a jump rope to measure, Elisa is able to determine that AB ≅ AC , but BC ≠AB .
d. If Δ J K L is isosceles, what is the minimum information needed to prove that Δ A B C ≅ ΔJ L K ? Explain your reasoning.