1. ©G Dear2008 – Not to be sold/Free to use
Mathematic
(HSC)
Geometry
Revision
Stage 6 - Year 12
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©G Dear2008 – Not to be sold/Free to use

2. Types of Triangles Based on Sides Based on Angles
1. Equilateral triangle.
1. Acute angled triangle.
All angles equal (60O)
All sides equal
All angles acute
2. Isosceles triangle.
2. Right angled triangle.
Two sides equal
One angle 90o
Two base-angles equal
3. Scalene triangle.
3. Obtuse angled triangle.
No sides equal
One Obtuse angle.
No angles equal