Question

given: ab = bc
prove: b is the midpoint of $overline{ac}$.
what is the format of this proof?
○ two-column proof
○ one-paragraph proof
○ flowchart proof
○ two-paragraph proof

Explanation:

A flowchart proof uses boxes connected by arrows to show the logical flow of a proof, with statements in boxes and justifications beside them. The given proof follows this structure, with each step in a box linked by arrows, paired with its reasoning.

Answer:

○ flowchart proof