Chapter 6 - Polygons and Quadrilaterals - 6-1 The Polygon Angle-Sum Theorems - Lesson Check - Page 356: 1

$Sum=1620$

Work Step by Step

We know that the sum of the interior angles is given by: $Sum=180*(n-2)$ Where n is the number of sides. Thus, for the given problem, we have: $Sum=180*(11-2)$ $Sum=1620$

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