Pairs of Angles. When parallel lines get crossed by another line (which is called a Transversal), you can see that many angles are the same, as in this example: These angles can be made into pairs of angles which have special names. Angles in parallel lines. Parallel lines are lines which are always the same distance apart and never meet. Arrowheads show lines are parallel. Two parallel. Parallel lines, transversal, alternate angles, corresponding angles, allied angles, co-interior angles and vertically opposite angles.
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In the following figure: If we draw to parallel lines and then draw a line transversal through them we will get eight different angles. The eight angles will together form four pairs of parallel lines angles angles.
Parallel lines angles Lines, and Pairs of Angles Parallel Lines Lines are parallel if they are always the same distance apart called "equidistant"and will never meet. Always the same distance apart and never touching.
If two parallel parallel lines angles are cut by a transversal as shown in the next diagram, we refer as follows to the angles formed: Alternate angles are always equal.
Angles and parallel lines (Pre-Algebra, Introducing geometry) – Mathplanet
When the lines are parallel, the alternate interior angles are equal in measure. The Z may also be backward: The eight angles will together form four parallel lines angles of corresponding angles.
Angles 1 and 5 constitutes one of the pairs. Corresponding angles are congruent.