Question

Based on what criteria can triangles be classified ?

• A. side
• B. angle
• C. Both (a) and (b)

Answer 1

The correct option is C Both (a) and (b)

Triangles can be classifed based on both side and angle.

Classification based on side

Equilateral Triangle: all 3 sides are equal in length.

Isosceles Triangle: 2 sides are equal in length.

Scalene Triangle: All 3 sides are unequal in length.

Classification based on angle

Acute Triangle: All angles are acute $(<{90}^{\circ })$

Right Triangle: One angle is right angle $\left({90}^{\circ }\right)$

Obtuse Triangle: One angle is obtuse$(>{90}^{\circ })$.