Which line is the transversal?

Which two lines are parallel?

Complete the statement: Parallel lines are lines that will never ______

What kinds of angles are formed by the intersecting lines?

When two angles, (like DBC and ABD) have the same vertex, share a common side, and do not overlap, they are ______.

If the sum of two angles is 90 degees, the angles are ______

If the sum of two angles is 180 degrees, the angles are ______ .

Lines that intersect to form a right angles are _____ .

If two parallel lines are cut by a transversal, all acute angles are ____ to each other.

If two parallel lines are cut by a transversal, all obtuse angles are ____ to each other.

If two lines are cut by a transversal, adjacent angles are ____.