Angles of Polygons--Interior and Exterior

Solve for x. Click on the blue dot and enter the number that x equals. Do not type "x = ", just the value. 83 17 8 16 13 3 Click on the blue dot and enter the name or number. Do not use capital letters and do not use degrees. ROUND TO THE NEAREST TENTH. triangle quadrilateral pentagon hexagon heptagon octagon nonagon decagon undecagon dodecagon 60 90 120 128.6 135 140 144 147.3 150 108 180 360 540 720 1080 900 1260 1620 1800 1440 Sort the descriptions into the correct category. Concave A shape that caves inward A star shape Cannot use the formulas on our chart for these types of polygons Convex A shape that does not cave inward A triangle Can use the formulas on our chart for these types of polygons NOT A POLYGON A pretzel shape A circle A shape that has curves convex convex concave concave concave convex heptagon decagon octagon decagon nonagon heptagon 1620 1800 720 1440 1080 1260 120 144 140 147.3 150 128.6 30 90 60 72 51.4 36 Match the correct formulas for polygons. Sum of Exterior Angles 360 One Exterior Angle in a Regular Polygon 360 Sum of Interior Angles (n-2) * 180 One Interior Angle in a Regular Polygon [(n-2) * 180] / n