Question

given: ab = bc
prove: b is the midpoint of ac.
ab = bc given
ab ≅ bc def. of ≅ segs.
b is the midpoint of ac def. of midpt.
what is the format of this proof?
flowchart proof
two - paragraph proof
two - column proof
one - paragraph proof

Explanation:

The proof has statements on the left and reasons on the right, which is characteristic of a two - column proof.

Answer:

C. two - column proof