U can draw unique triangle in following cases: 1. If u have all 3 sides(sss rule) 2. 2 sides and measure of angle between those 2 sides(SASS rule) 3. 2 angles and measure of the side between those 2 angles(ASA rule). 4. 2 angles and measure of side which is not between those 2 angles (AAS rule) Note that even with 3 angles u can't make unique triangle u'll end up making similar triangles but not unique triangle.