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Name: ___________________________ Geometry NR: Assignment 6-1 For #1-7, classify each as: Open OR Closed ? Polygon OR Not a Polygon? If it’s a polygon, is it Concave OR Convex? 1. ____________________ ____________________ ____________________ 2. ____________________ ____________________ ____________________ 3. ____________________ ____________________ ____________________ 6. ____________________ ____________________ ____________________ 1. Find the number of sides of a polygon whose interior angles add to 2220. _________ 2. Find the missing angle measure. 4. ____________________ ____________________ ____________________ 5. ____________________ ____________________ ____________________ _________ 3. How many sides does a polygon have if the sum of the interior angles is 1620? 6. Find the missing angle measure and name the figure shown. _________ 4. Find the missing angle measure. _________ 7. Find the missing angle measure and name the figure shown. _________ 5. What is the sum of the measures of the angles in this 14 sided polygon? _________ _________ 8. What is the sum of the measures of the interior angles of a 20-gon? _________