What is the missing statement in the proof? scroll down to see the entire proof. a ∠bdc≅∠adb b ∠bca≅∠dcb c ∠bac≅∠bad d ∠dbc≅∠bac done given: δabc with m∠abc = 90° (view diagram) prove: ab2 + bc2 = ac2 statement reason 1. draw bd¯¯¯¯¯⊥ac¯¯¯¯¯ (view diagram). construction 2. ∠abc≅∠bdc angles with the same measure are congruent. 3. reflexive property of congruence 4. δabc~δbdc aa criterion for similarity 5. bcdc=acbc 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. δabc~δadb aa criterion for similarity