What Is A Alternate Interior Angle

The theorem says that when the lines are parallel the alternate interior angle is equal.

What is a alternate interior angle. Euclid s proposition 28 extends this result in two ways. When two lines are crossed by another line the transversal a pair of angles on the inner side of each. This concept introduces students to alternate interior angles and how to use them to determine whether or not lines are parallel.

Illustrated definition of alternate interior angles. These angles are called alternate interior angles. The alternate interior angle is formed when a transversal passes through two lines.

The angles which are formed inside the two parallel lines when intersected by a transversal are equal to its alternate pairs. To help you remember. There are thus two pairs of these angles.

Click on alternate interior angles to have them highlighted for you. In the figure above click on other angle pair to visit both pairs of alternate interior angles in turn. Alternate interior angles are the angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles.

In the above given figure you can see two parallel lines are intersected by a transversal. These pairs are alternate interior angles. Then one of the alternate angles is an exterior angle equal to the other angle which is an opposite interior angle in the triangle.

Alternate interior angles definition. Alternate interior angles alternate exterior angles relationships of various types of paired angles proof of the alternate interior angle theorem proof of the converse of the alternate interior angle theorem proof of the alternate exterior angle theorem proof of the converse of the alternate exterior angle theorem examples and step by step solutions how to solve for x using alternate. The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles.