Question

A triangle has side lengths of 12 centimeters, 11 centimeters, and 11 centimeters. Is this triangle equilateral?

Answer 1

A triangle is considered equilateral if all three of its sides are of equal length. In this case, the triangle has side lengths of 12 centimeters, 11 centimeters, and 11 centimeters. Since not all three sides are equal (two sides are 11 centimeters and one side is 12 centimeters), this triangle is not equilateral.

Therefore, the answer is no, this triangle is not equilateral.