1. Ronald Hui Tak Sun Secondary School
Form 3 Mathematics
Ronald Hui
Tak Sun Secondary School

2. When you are in Form 1

3. Conditions for Congruent Triangles
The table below summarizes all the conditions needed for two triangles to be congruent:
SSS
SAS
ASA
AAS
RHS

4. Conditions for Similar Triangles
To conclude what we have learnt in this section, we can summarize the following conditions for two triangles to be similar.
AAA
3 sides proportional
ratio of 2 sides, inc. 
a d
b e
c f =
p r
q s =
, x = y

5. Congruent and Similar Triangles