Segment and Angle Proofs

Front

What is the Substitution Property?

Back

If two quantities are equal, one can be substituted for the other in any expression.

Front

What is the Symmetric Property?

Back

If a = b, then b = a.

Front

What is the Transitive Property?

Back

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

Front

What is the Reflexive Property?

Back

Any quantity is equal to itself; a = a.

Front

What is the Addition Property of Equality?

Back

If a = b, then a + c = b + c for any c.

Front

What is the Subtraction Property of Equality?

Back

If a = b, then a - c = b - c for any c.

Front

What are Complementary Angles?

Back

Two angles that add up to 90 degrees.

Front

What is the Segment Addition Postulate?

Back

If point B is between points A and C, then AB + BC = AC.

Front

What is a Midpoint?

Back

A point that divides a segment into two equal parts.

Front

How do you express that two segments are equal?

Back

You can write it as AB = CD.