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Geometry for School and Home
Activity 3.8
Assignment 3.9
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Assignment 4.15
Exterior Angles of Polygons
Objectives
Name exterior angles of a polygon.
Develop and apply a theorem for the sum of measures of exterior angles of polygons.
About Geometry Worksheet Assignment 4.15:
Assignment 4.15 is an introduction to exterior angles of polygons and the development and application of theorems about their measures.
Prerequisite Skills: Calculate the measures of angles in linear pairs (Assignment 4.4). Solve algebraic equations with one variable.
Definition: An angle is an exterior angle of a polygon if the angle and an angle of the polygon are a linear pair.
Theorems: The sum of the exterior angle measures of a convex polygon is 360.
The measure of each exterior angle of an equiangular polygon: 360 (n is the number of sides in the polygon.
n