Alternate interior angles


Alternate interior angles
are formed when a line, called transversal, cuts or intersects two or more lines.

In the figure below, line p is the transversal or the line that cuts or intersects two lines ( line m and line n ).

Alternate interior angles

Alternate interior angles are on opposite sides of the transversal and on the inside of the lines the transversal cuts or intersects.

Angle a and angle b are on opposite sides of the transversal or line p and they are located inside line m and line n. Therefore, angle a and b are alternate interior angles.

By the same token, angle c and angle d are on opposite sides of the transversal or line p and they are located inside line m and line n. Therefore, angle c and d are also alternate interior angles.

When a transversal intersects two lines, two pairs of alternate interior angles will always be formed.

Recent math words

  1. What does Average Mean ? Definition and Examples

    Aug 19, 19 11:09 AM

    What does average mean ? The average is a single number used to represent ...

    Read More

  2. Crystal Clear Way to Define Angle

    Aug 12, 19 12:28 PM

    Here is how to define angle the easiest way possible. An angle is ...

    Read More