If the slopes of two lines are equal, then the lines are __ to each other.
If two lines are parallel their slopes are equal.
Conversely, if the slopes of two lines are equal, then the lines are parallel to each other.
Two lines, with slopes 'm' and 'n', are parallel to each other if ______.
Which of the following statements are true (I) 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 angles on the same side of the transversal are equal.
When two lines of slopes m1 & m2 are perpendicular to each other. Product of their slopes is 1