Question

complete this sentence. a triangle is equilateral if ______ sides are the same length. all 3 at least 2 only 2 no

Explanation:

Step1: Recall the definition of an equilateral triangle

An equilateral triangle has all three sides equal.

Step2: Analyze each option

• “at least 2” sides equal is an isosceles triangle.
• “only 2” sides equal is also an isosceles triangle.
• “no” sides equal is a scalene triangle.
• Only “all 3” sides equal satisfies the definition of an equilateral triangle.

Answer:

A. all 3