Triangle Congruence Identifier
About This MicroSim
This practice tool presents triangle pairs with various congruent parts marked. Your task is to identify which congruence criterion (if any) applies.
How to Use
- Examine the triangles and the marked congruent parts
- Click an answer (SSS, SAS, ASA, AAS, HL, or Not Enough)
- Click "Check Answer" to see if you're correct
- Click "Next Problem" to continue practicing
- Click "Hint" if you need help
Answer Choices
| Choice | Meaning |
|---|---|
| SSS | Three sides congruent |
| SAS | Two sides + included angle |
| ASA | Two angles + included side |
| AAS | Two angles + non-included side |
| HL | Right triangle: hypotenuse + leg |
| Not Enough | Information insufficient (like AAA) |
Visual Markers
- Orange tick marks on sides indicate congruent sides
- Purple arcs at angles indicate congruent angles
- Red square indicates a right angle
Learning Objectives
- Apply triangle congruence criteria
- Analyze which criterion fits given markings
- Evaluate whether information is sufficient
Bloom's Taxonomy Level
Applying and Evaluating - Identifying correct criteria.
Iframe Embed Code
<iframe src="https://dmccreary.github.io/geometry-course/sims/triangle-congruence-identifier/main.html"
height="602px"
width="100%"
scrolling="no"></iframe>