Unit A: Geometry

Chapter 1: Polygons

Summary

Practical Applications of Polygons

Knowledge of polygons can be applied to real-life situations by

• Identifying regular and irregular polygons
  

• Using the formula S = 180°(n – 2)
  
• where S represents the sum of interior angles in a polygon
• where n represents the number of sides of the polygon

• Using the formula $M=\frac{180°\left(n-2\right)}{n}$
• where M represents the angle measure in a regular polygon
• where n represents the number of sides of the polygon
  

• Identifying the six types of triangles by side lengths or angle measures

• Finding the angle measures in a triangle

• Identifying properties of special quadrilaterals

• Finding the angle measures in a quadrilateral