Question

Which of the following triangles is/are classified on the basis of angles?

• A. Acute angled triangle
• B. Scalene triangle
• C. Equilateral triangle
• D. Obtuse angled triangle

Answer 1

Answer: (A), (D)

Obtuse angled triangle

On the basis of the angles triangles are divided into 3 types.

If the angles of a triangle are less than ${90}^{\circ }$, then it is called an acute angled triangle.

If any one angle of a triangle is greater than ${90}^{\circ }$ and less than ${180}^{\circ }$, then it is called an obtuse angled triangle.

If any one angle of a triangle is equal to ${90}^{\circ }$, then it is called a right angled triangle.