Angles made by a transversal with two lines - interior angles.

If two parallel lines are cut by a transversal, then the alternate interior angles are equal

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.

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.

If two lines are intersected by a transversal, then how many pairs of interior angles are formed?

Which of the following statements are true (T) and which are false (F)? Give reasons. (i)If two lines are intersected by a transversal, then corresponding angles are equal. (ii)If two parallel lines are intersected by a transversal, then alternate interior angles are equal. (iii)Two lines perpendicular to the same line are perpendicular to each other. (iv)Two lines parallel to the same line are parallel to each other. (v)If two parallel lines are intersected by a transversal, then the interior angle on the same side of the transversal are equal.

Which of the following statements are true (T) and which are false (F)? Give reasons. (i)If two lines are intersected by a transversal, then corresponding angles are equal. (ii)If two parallel lines are intersected by a transversal, then alternate interior angles are equal. (iii)Two lines perpendicular to the same line are perpendicular to each other. (iv)Two lines parallel to the same line are parallel to each other. (v)If two parallel lines are intersected by a transversal, then the interior angle on the same side of the transversal are equal.

If two parallel lines are intersected by a transversal , then the interior angles on the same side of the transversal are -

If two lines are intersected by a transversal, then the number of pairs of interior angles on the same side of the transversal is