A triangle with three unequal sides is called a scalene triangle.

Classify the triangle by its angles and sides $△\mathrm{B}\mathrm{A}\mathrm{D}$.

Classify triangle by its angles and sides $△\mathrm{A}\mathrm{D}\mathrm{C}$.

Classify each triangle by its angles and sides $△\mathrm{B}\mathrm{A}\mathrm{C}$.

Classify the $△\mathrm{BAE}$ by its angles and sides.