Question

a triangle that has three equal sides is called ​

Answer 1

Equilateral triangle is the answer.

Answer 2

A triangle that has three equal sides is called an equilateral triangle.

• An equilateral triangle is one in which all three sides have the same length and the angles are also of the same length.
• An equilateral triangle is also known as an equiangular triangle because each of its angles has a value of 60 degrees.

Hence answer to the above question is an equilateral triangle.