The figure shows ∆abc with m∠abc = 90°. the first 10 steps to prove that ab2 + bc2 = ac2 are given in the table. match the remaining steps to their correct sequence in the proof. 1. draw . construction 2. ∠abc ≅ ∠bdc angles with the same measure are congruent. 4. ∠bca ≅ ∠dcb reflexive property of congruence 4. aa criterion for similarity 5. corresponding sides of similar triangles are proportional. 6. bc2 = ac × dc cross multiplication 7. ∠abc ≅ ∠adb angles with the same measure are congruent. 8. ∠bac ≅ ∠dab reflexive property of congruence 9. aa criterion for similarity 10. corresponding sides of similar triangles are proportional.