Question

What minimum information about a triangle allows you to draw exactly one triangle

Answer 1

We need at least 3 informations.
They are similar to that of the requirements for the two triangles to be congruent.

1. Angle - Side - Angle
2. Side - Angle - Side
3. Angle - Angle - Side (this one is not easy for drawing)
4. Side - Side - Side and
5. Right angle - Hypotenuse - Side