Is δ abc with vertices a(-2, -5), b(-3, 2) and c(1, -2) a right triangle? a.) δ abc is not a right triangle. b.) δ abc is a right triangle because ab ⊥ ac c.) δ abc is a right triangle because bc ⊥ ac d.) δ abc is a right triangle because ab ⊥ bc

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte