Parallel line Proofs

Front

If ∠8 ≅ ∠6, then ________?

Back

line b is parallel to line a.

Front

Supply the first statement for parallel lines.

Back

m ll n.

Front

If ∠5 ≅ ∠10, then ________?

Back

line c is parallel to line d.

Front

The last statement is ∠4 = ∠6. What is the last reason?

Back

Transitive Property.

Front

If A=B and B=C, then A=C. What is this property?

Back

Transitive.

Front

What is the definition of parallel lines?

Back

Two lines that never intersect and are equidistant from each other.

Front

What theorem states that if two parallel lines are cut by a transversal, then each pair of alternate interior angles is congruent?

Back

Alternate Interior Angles Theorem.

Front

What is the definition of congruent angles?

Back

Angles that have the same measure.

Front

What is the Reflexive Property?

Back

Any quantity is equal to itself.

Front

What is the Symmetric Property?

Back

If A = B, then B = A.