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CHAPTER 2 : TRIANGLES
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.
D ABC has three sides
AB, BC and CA. It has three angles
Ð ABC, Ð
BCA and ÐCAB.
2.1 Introduction2.2 Sum Of The Angles Of A Triangle2.3 Types of Triangles2.4 Altitude, Median And Angle Bisector2.5 Congruence Of Triangles2.6 Sides Opposite Congruent Angles