When two lines are crossed by another line (the Transversal), a pair of angles

• on the outer side of those two lines

• but on opposite sides of the transversal

are called Alternate Exterior Angles.

When the two lines are parallel Alternate Exterior Angles are equal.

Play with it below (try dragging the points):

• on the outer side of those two lines

• but on opposite sides of the transversal

are called Alternate Exterior Angles.

When the two lines are parallel Alternate Exterior Angles are equal.

Play with it below (try dragging the points):

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