Question

To classify the triangles on the basis of sides and angles from the given set of triangles

Answer 1

Dear Student,

Classification of Triangles on the Basis of Their Sides :-

Equilateral triangle:
An equilateral triangle is a triangle whose all three sides are equal.

Isosceles triangle:
An isosceles triangle is a triangle whose any two sides are equal.

Scalene triangle:
In a scalene triangle, all the three sides are unequal.

Classification of Triangles on the Basis of Their Angles :-

Acute-angled triangle:
If all the three angles of a triangle are acute angles (i.e., each measures less than 90°), it is called an acute-angled triangle.

Right-angled triangle:
If one of the angles of a triangle is a right angle (i.e., measures 90°), it is called a right-angled triangle.

Obtuse-angled triangle:
If any of the three angles of a triangle is an obtuse angles (i.e., measures more than 90°), it is called an obtuse-angled triangle.


Regards