Included side — Geometry, what it means and where it is taught
The side between two named angles. The S in ASA must be included.
Taught in Geometry.
Where it is taught
Practise this idea
1 question in the course bank use Included side, in Triangle Congruence Proofs.
Problem 1
∠ A ≅ ∠ D, ∠ B ≅ ∠ E, BC ≅ EF. Name the shortcut.
Worked answer
AAS
BC is not between ∠ A and ∠ B.
Two angles and a non-included side: AAS.