180
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Total interior angles: (100-2)*180 = 17,640 degrees
For a pentagon, which has 5 sides, you can use the formula: Total Sum of Interior Angles = (5 - 2) * 180 degrees Total Sum of Interior Angles = 3 * 180 degrees Total Sum of Interior Angles = 540 degrees So, the total sum of the interior angles in a pentagon is 540 degrees.
The measures of the interior angles of a hexagon add up to 720 degrees.
Triangles have 3 interior angles that measure 180 degrees total.
Interior angles of any quadrilateral always total 360o.