Equilateral Triangle Calculator
Calculate the area, perimeter, height, and other properties of an equilateral triangle.
Equilateral Triangle Properties
Basic Properties
- All sides are equal (a = b = c)
- All angles are equal (60° each)
- All heights are equal
- All medians are equal
- All angle bisectors are equal
Formulas
- Height: h = a × √3/2
- Area: A = a² × √3/4
- Perimeter: P = 3a
- Circumradius: R = a/√3
- Inradius: r = a/(2√3)
Note: In an equilateral triangle, all sides and angles are equal, making it a regular polygon with three sides.
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