Complete the coordinate proof.

Given Coordinates of vertices of △OBC and △ODC
Prove △OBC and △ODC are isosceles triangles.
By the Distance Formula, OB =
, BC =
, OD =
, and DC =
. So △OBC and △ODC are isosceles by definition.

Select the correct answer. given: ∆abc with prove: statement reason 1. given 2. ∠cab ≅ ∠edb ∠acb ≅ ∠deb if two parallel lines are cut by a transversal, the corresponding angles are congruent. 3. ∆abc ~ ∆dbe aa criterion for similarity 4. corresponding sides of similar triangles are proportional. 5. ab = ad + db cb = ce + eb segment addition 6. substitution property of equality 7. division 8. subtraction property of equality what is the missing statement in the proof? scroll down to see the entire proof.