this triangle is NOT an equilateral triangle
Explanation
an equilateral triangle is a triangle in which all three sides have the same length
Step 1
compare the measures
[tex]\begin{gathered} 16\text{ milimeters} \\ 16\text{ milimeters} \\ 15\text{ milimeters} \end{gathered}[/tex]
a side is different (15 mm) so , this triangle is NOT an equilateral triangle
