Chapter Seven:  
Area

Geometry   Notes

Chapter  7

Section  7.1
Section  7.2
Section  7.3
Section  7.4
Section  7.5
Section  7.6
Section  7.7
Section  7.8

Geometry Contents

Take notes on the following topics.

Vocabulary

Regular polygon (p. 146) A regular polygon is a polygon that is both equilateral and equiangular. Its center is the center of the circumscribed circle.

Radius of a regular polygon (p. 380) The radius of a regular polygon is the distance from the center to a vertex.

Apothem (p. 380) The apothem of a regular polygon is the distance from the center to a side.

Theorem 7-12 (Area of a Regular Polygon)

The area of a regular polygon is half the product of the apothem and the perimeter.