Triangle Congruence

Geom · Unit 6

Why SSA & AAA Fail

The ambiguous and shape-only cases

Curriculum standard — Understand stage of the Thinking Ladder

Concept first

Why SSA & AAA Fail begins with meaning — what it is and why it holds — before any procedure. The structure comes first; computation follows.
Definition

Why SSA & AAA Fail

The precise meaning of this topic, stated in mathematical terms.

A plain-language restatement so the definition is understood, not just memorized.