1. An external or exterior angle of a polygon is an angle outside the polygon formed by one of its sides and the extension of an adjacent side.
>> It is the angle that is formed by a simple side in a closed polygon that share an endpoint.
2. An internal or interior angle of a polygon is an angle inside the polygon at one of its vertices.
>> It is the angle that can be found inside the shape at the vertex of a polygon. Its angle's magnitude is decide by the number of sides of a certain polygon.
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Answer:
1. An external or exterior angle of a polygon is an angle outside the polygon formed by one of its sides and the extension of an adjacent side.
>> It is the angle that is formed by a simple side in a closed polygon that share an endpoint.
2. An internal or interior angle of a polygon is an angle inside the polygon at one of its vertices.
>> It is the angle that can be found inside the shape at the vertex of a polygon. Its angle's magnitude is decide by the number of sides of a certain polygon.
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