what is alternate angle

Dear Student.
 If there are two lines and both of them are intersected by a transversal, then the angles on opposite sides of the transversal line and on opposite relative sides of the other lines are called alternate angles. If the lines are parallel then the alternate angles are equal.


Here angle 3 and 6 are alternate angles. Angle 4 and 5 are also alternate angles.
​​​​​​Angles 1 and 8 are alternate exterior angles and 2 and 7 are also alternate exterior angles.

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