2.15 Angle-Angle (AA) Similarity Theorem: Quick Investigation

Interact with this app for a few minutes. You can move the colored sliders (lower left) to change the sizes of the colored angles. The LARGE POINTS (vertices) of these triangles are also moveable.
In the app above, what do you notice? What do you wonder?
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Information: 2.15 Angle-Angle (AA) Similarity Theorem: Quick Investigation