Problems from Classification and properties of the triangles

Consider a few triangles with the following characteristics, categorize them according to their number of sides and of angles:

1. Triangle with three interior angles of less than $$90^\circ$$ and with three equal sides.
2. Triangle with an interior angle higher than $$90^\circ$$ and two equal sides.
3. Triangle with an angle of $$90^\circ$$ and three different sides.
4. Triangle with an angle of $$90^\circ$$ and two equal sides.
5. Triangle with an angle of less than 90º and two equal sides.
6. Triangle with an interior angle higher than $$90^\circ$$ and two equal sides.