If the bisectors of a pair of alternate angles formed by a transversal with two given lines are parallel, prove that the given lines are parallel.

If the bisectors of a pair of corresponding angles formed by a transversal with two given lines are parallel; prove that the given lines are parallel.

If the bisectors of a pair of corresponding angles formed by a transversal with two given lines are parallel;prove that the given lines are parallel.

If the bisectors of a pair of corresponding angles formed by a transversal with two given lines lines are parallel, prove that the given lines are parallel.

Write converses of the following statements: If a pair of the interior angles made by a transversal of two lines are supplementary then the lines are parallel.

Transversal to two parallel lines:

Write converse of the following statement: If a pair of the interior angles made by a transversal of two lines are supplementary then the lines are parallel.

IS given pair of lines are parallel? Why?

Is given pair of lines are parallel? Why?

Write the converse of, "if the corresponding angles formed by a transversal of two lines are congruent, then two lines are parallel."