what is the format of this proof?
given: $ \angle abc $ is a right angle, $ \angle dbc $ is a straight angle
prove: $ \angle abd $ is a right angle

$ \begin{array} { l | l } { \text { statements } } & { \text { reasons } } \\ \hline 1 & { 1 } \\ 2 & { 2 } \\ 3 & { 3 } \\ 4 & { 4 } \\ 5 & { 5 } \\ 6 & { 6 } \\ 7 & { 7 } \\ 8 & { 8 } \end{array} $

Question

what is the format of this proof?
given: $ \angle abc $ is a right angle, $ \angle dbc $ is a straight angle
prove: $ \angle abd $ is a right angle

$ \begin{array} { l | l } { \text { statements } } & { \text { reasons } } \\ \hline 1 & { 1 } \\ 2 & { 2 } \\ 3 & { 3 } \\ 4 & { 4 } \\ 5 & { 5 } \\ 6 & { 6 } \\ 7 & { 7 } \\ 8 & { 8 } \end{array} $

Accepted Answer

# Answer:
Two - column proof
# Brief Explanations:
A two - column proof has two columns. One column is for statements (such as "∠ABC is a right angle" or "m∠ABD + m∠ABC=m∠DBC") and the other column is for the reasons (such as "given" or "angle addition property"). In the given proof, we have a left - hand side with statements numbered $1 - 8$ and a right - hand side with corresponding reasons numbered $1 - 8$, which is the characteristic of a two - column proof.

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