Two Column Proofs In Geometry

Front

What is a Two Column Proof?

Back

A method of organizing a proof in geometry where statements and corresponding reasons are listed in two columns.

Front

What is the Transitive Property?

Back

If a = b and b = c, then a = c.

Front

What is the Symmetric Property of Equality?

Back

If a = b, then b = a.

Front

What is the Reflexive Property of Equality?

Back

For any number a, a = a.

Front

What is the purpose of Given Information in a proof?

Back

It provides the starting point or assumptions that are accepted as true.

Front

What is the Angle Addition Postulate?

Back

If point B is in the interior of angle AOC, then m∠AOB + m∠BOC = m∠AOC.

Front

What does POE stand for in geometry?

Back

Property of Equality.

Front

What is the difference between the Transitive and Symmetric Properties?

Back

Transitive relates three elements, while Symmetric relates two elements.

Front

How do you start a Two Column Proof?

Back

You start with the given information.

Front

What is an example of the Reflexive Property?

Back

If AB is a segment, then AB = AB.