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Mathematics 8 Online
OpenStudy (anonymous):

Tony is drawing a regular polygon. He has drawn two of the sides with an interior angle of 120°, as shown below. What will be the sum of the interior angles of the regular polygon have when Tony completes his drawing?

Directrix (directrix):

I don't see a diagram. A regular hexagon has interior angles of measure 120 degrees. Multiply that by the number of sides of a hexagon to get the sum of the interior angles.

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