Transcript Document

Mathematic
(Preliminary)
Types of Triangles
Stage 6 - Year 11
Press Ctrl-A
©G Dear2008 – Not to be sold/Free to use
1
Types of Triangles
Based on Sides
Equilateral
a. Three equal sides.
b. Three equal angles
(60o).
2
Types of Triangles
Based on Sides
Isosceles
a. Two equal sides.
b. Two equal base angles.
3
Types of Triangles
Based on Sides
Scalene
a. No equal sides.
b. No equal angles.
4
Types of Triangles
Based on Angles
Acute Angled
All angles are a acute angles
<
90o
5
Types of Triangles
Based on Angles
Acute Angled
One Right Angle
=
90o
6
Types of Triangles
Based on Angles
Obtuse Angled Triangle
One Obtuse Angle
>90o and <180o
7