Segment and Angle Proofs Practice

Front

What is the Reflexive Property?

Back

For any segment or angle A, A = A. This property states that any quantity is equal to itself.

Front

What does it mean for two angles to be supplementary?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Front

What is the Linear Pair Postulate?

Back

If two angles form a linear pair, then they are supplementary.

Front

What can be concluded if two angles are adjacent?

Back

Adjacent angles share a common vertex and a common side but do not overlap.

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 definition of complementary angles?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

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 it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if they intersect to form right angles (90 degrees).

Front

What is the Transitive Property?

Back

If A = B and B = C, then A = C.

Front

What is the definition of a straight angle?

Back

A straight angle measures exactly 180 degrees.