# Exterior Angle

### The Exterior Angle is the angle between any side of a shape, and a line extended from the next side.

Another example:

When we add up the Interior Angle and Exterior Angle we get a straight line 180°. They are "Supplementary Angles".

Another example:

When we add up the Interior Angle and Exterior Angle we get a straight line 180°. They are "Supplementary Angles".

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