Ambiguous case — Precalculus, what it means and where it is taught
Two sides and a non-included angle, which can describe two different triangles.
Taught in Precalculus.
Where it is taught
What it rests on
Work through these first if this one does not settle.
- Included angle — The angle between two named sides. The A in SAS must be included.
Practise this idea
1 question in the course bank use Ambiguous case, in Triangle Congruence Proofs.
Problem 1
Which combination does NOT prove congruence?
- SSA
- SSS
- ASA
- AAS
Worked answer
SSA
SSA can give two different triangles.
It proves nothing.