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:
- Triangle with three interior angles of less than $90^\circ$ and with three equal sides.
- Triangle with an interior angle higher than $90^\circ$ and two equal sides.
- Triangle with an angle of $90^\circ$ and three different sides.
- Triangle with an angle of $90^\circ$ and two equal sides.
- Triangle with two equal sides which form an angle of less than $90^\circ$.
- Triangle with an interior angle higher than $90^\circ$ and two equal sides.
Theoretical exercise.
- Acute angled equilateral.
- Obtuse angled isosceles.
- Rectangular scalene.
- Rectangular Isosceles.
- Acute angled isosceles.
- Obtuse angled isosceles.