CHAPTER 2 : TRIANGLES
2.1 Introduction
As the name triangle suggests, this geometric shape is made of three angles. It has three sides and is represented by the symbol D and is named by its vertices as shown in figure 2.1.
Figure 2.1
D ABC has three sides
AB, BC and CA. It has three angles
Ð ABC, Ð
BCA and ÐCAB.

Index
2.1 Introduction 2.2 Sum Of The Angles Of A Triangle 2.3 Types of Triangles 2.4 Altitude, Median And Angle Bisector 2.5 Congruence Of Triangles 2.6 Sides Opposite Congruent Angles
Chapter 3
