Alternate Exterior Interior Angles

Click and drag around the points below to explore and discover the rule for parallel lines cut by a transversal on your own.

Alternate exterior interior angles. Alternate interior angles are two congruent angles from different parallel lines one from L I one from O N. Alternate interior angles lie between the lines cut by the transversal. Angles that are in the area between the parallel lines like angle 2 and 8 above are called interior angles whereas the angles that are on the outside of the two parallel lines like 1 and 6 are called exterior angles.

One way to identify alternate exterior angles is to see that they are the vertical angles of the alternate interior angles. You can create a customized shareable link at bottom that will remember the exact state of the app--which angles are selected and where the points are so that you can share your it with others. Identify corresponding alternate and co-interior angles when two straight lines are crossed by a transversal.

1 7 and 4 6. Here are lines T R and I P which would definitely cross somewhere in the distance. Angles 2 and 7 are ALTERNATE and angles 1 and 8 are ALTERNATE.

Also like with interior angles the above exterior angles are equal when a transversal line crosses 2 parallel lines. These angles are created in the space outside the parallel lines on alternate sides. Alternate interior angles are those angles that have different vertices they lie on the alternate sides of the transversal and are in between the interior of the two lines.

Alternate exterior angles are equal to one another. Ang1 and ang8 Find the measure of angle 1. Improve your math knowledge with free questions in Identify alternate interior and alternate exterior angles and thousands of other math skills.

Alternate exterior angles are equal to one another. One way to identify alternate exterior angles is to see that they are the vertical angles of the alternate interior angles. To identify corresponding alternate and co-interior angle Know.