7.3 & 7.4 Polygon Formulas 2016.notebook January 25, 2016 Examples (Level 1) Examples (Level 2) 1.) Find the sum of the angles in a decagon. 4.) Find the name of the polygon whose angles add up to 1080o. 2.) Find the sum of the exterior angles in a heptagon. 5.) Find the number of diagonals in a 100gon. 3.) Find the number of diagonals in a nonagon. Examples (Level 3) 7.) A polygon with angles adding up to 1800o has the number of sides it has cut in half. How many diagonals are in the new polygon? 6.) How many sides are in a polygon with angles adding up to 2065o? Examples (Level 3) 8.) A hexagon has 4 angles with measures of 40o, 100o, 110o, and 80o. What is the measure of each of the remaining two angles if they are congruent to each other? 1 7.3 & 7.4 Polygon Formulas 2016.notebook Examples (Level 1) 1.) Find the sum of the angles in a decagon. January 25, 2016 Examples (Level 2) 4.) Find the name of the polygon whose angles add up to 1080o. 5.) Find the number of diagonals in a 100gon. 2.) Find the sum of the exterior angles in a heptagon. 6.) How many sides are in a polygon with angles adding up to 2065o? 3.) Find the number of diagonals in a nonagon. Examples (Level 3) 7.) A polygon with angles adding up to 1800o has the number of sides it has cut in half. How many diagonals are in the new polygon? Examples (Level 3) 8.) A hexagon has 4 angles with measures of 40o, 100o, 110o, and 80o. What is the measure of each of the remaining two angles if they are congruent to each other? 2
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