The six different classifications are :
BASED ON SIDES:
• Isosceles triangle: This type of triangle has 2 equal adjacent sides, while one side is different
• Scalene triangle : All three sides are different in measurement
• Equivalent triangle : All three sides measure the same, meaning the measurement of sides are equal
BASED ON ANGLES:
• Obtuse angle triangle: One obtuse angle present (more than 90)
• Acute angle triangle: Has all three acute angles (less than 90)
• Right angle triangle: Has one angle which is 90° and the other two are acute
Hope it helps!