Exterior angles: 360 degrees
Interior angles: 1800 degrees
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The exterior angles of a 12 sided dodecagon add up to 360 degrees
The sum of the interior angles of a dodecagon is:sum = (12 - 2) x 180o= 1800oIn a regular dodecagon, each of the interior angles is 1800o ÷ 12 = 150o
The exterior sum of angles for any polygon is always 360 degrees.The sum of the exterior angles of a 12 sided dodecagon is 360 degrees
The 12 interior angles of a dodecagon add up to 1800 degrees
The interior angles of a dodecagon sum to 1800 degrees.