Atwo-column proof

a- uses a visual representation of the logical flow of steps needed to reach a conclusion.

b- contains a table with a logical series of statements and reasons that reach a conclusion.

c- contains a set of sentences explaining the steps needed to reach a conclusion.

d- uses inductive reasoning to prove a statement.

Organizing a proof in geometry is the common way in a two column proof. In two-column proof, it consists of two columns one for reasons and one for statements. In the reason column, each statement is justified appropriately, which may include conjectures, theorems or definitions.

Therefore, a two column proof contains a table with a logical series of statements and reasons that reach a conclusion.

the answer is a, c, d, e

i have heard the mermaids singing, each to each.

i do not think they will sing to me