As far as the definition is concerned let ABC is an equilateral triangle. And lets say that that length is s. Each of the angles of the equilateral triangle measures 60.
Perpendiculars perpendicular bisectors medians and angle bisectors are always the same line on an equilateral triangle.
A 2 a2 2 h 2. Side of an equilateral triangle a 8 cm. And a b c. Lets say that this triangle right over here is equilateral which means all of its sides have the same length.