How to do a triangle with the help of SAS Criterion??
To prove 2 triangles congruent using the SAS congruency rule, we have to show that the 2 triangles have 2 sides , and the angle included by these 2 sides equal.
If we have AB = DE, BC = EF and ∠ABC = ∠DEF,
then we can say that ΔABC ΔDEF.
Here, the angle must be the included angle between the 2 sides taken.