Proving Lines Parallel

Front

What is the Transitive Property of Congruence?

Back

If two figures are congruent to a third figure, then they are congruent to each other.

Front

What is the Reflexive Property of Congruence?

Back

Any geometric figure is congruent to itself.

Front

What is the Transitive Property of Equality?

Back

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

Front

What is the relationship between parallel lines and corresponding angles?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is congruent.

Front

What is the relationship between parallel lines and alternate interior angles?

Back

If two parallel lines are cut by a transversal, then each pair of alternate interior angles is congruent.

Front

What is the relationship between parallel lines and same-side interior angles?

Back

If two parallel lines are cut by a transversal, then the same-side interior angles are supplementary.

Front

How can you determine if two lines are parallel using angle measures?

Back

If the corresponding angles are equal, the lines are parallel.

Front

What value of x makes line m || line n if the angles are 54 and 126 degrees?

Back

x = 54.

Front

If angle measures are 20 and 24 degrees, which value of x shows that lines l and m are parallel?

Back

x = 24.

Front

Given angle measures of 33 and 20 degrees, which value of x shows that line m is parallel to line r?

Back

x = 20.