When two coplanar lines are cut by a transversal, the angles formed between the two lines and on opposite sides of the transversal are
called alternate angles or alternate interior angles.
called corresponding angles.
When two coplanar lines are cut by a transversal, the angles formed between the two lines and on opposite sides of the transversal are called alternate interior angles. These angles are located on the inside of the two lines, but opposite sides of the transversal.
To find alternate interior angles, follow these steps:
1. Identify the two lines that are being intersected by the transversal.
2. Locate the transversal, which is a line that intersects the other two lines.
3. Identify the angle formed on one side of the transversal between the two lines.
4. Locate the angle that is on the other side of the transversal but between the same two lines.
5. These two angles, located on opposite sides of the transversal and between the same lines, are the alternate interior angles.
Remember, alternate interior angles are congruent, which means they have the same measure. This property is a result of the lines being parallel or being cut by a transversal.