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Mathematics 15 Online
OpenStudy (chicatica11):

The measure of an exterior angle at the vertex of a polygon equals the measure of the adjacent interior angle. Always, sometimes, never

OpenStudy (mathstudent55):

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OpenStudy (mathstudent55):

Above you see a hexagon, a 6-sided polygon. Angles 1 and 2 are adjacent angles. One of them is an interior angle of the hexagon, and one of them is an exterior angle of the hexagon. Can you name which is which?

OpenStudy (chicatica11):

1 would be interior?

OpenStudy (chicatica11):

no #2

OpenStudy (mathstudent55):

Interior means inside. Exterior means outside. Is angle 1 inside or outside the polygon?

OpenStudy (chicatica11):

sorry i looked at it wrong

OpenStudy (mathstudent55):

Correct. Angle 2 is interior and angle 1 is exterior.

OpenStudy (chicatica11):

okay

OpenStudy (mathstudent55):

If I tell you that this drawing is drawn to scale, then you would be able to use a protractor to measure the angles. Do angles 1 and 2 look like they have the same measure?

OpenStudy (chicatica11):

yes?

OpenStudy (mathstudent55):

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