Online equilateral triangle area calculator

1. This tool can calculate the area of an equilateral triangle using the length of one of its sides.

2. Formula: Area of an equilateral triangle = the square of the side length multiplied by the square root of three, then divided by four

3. Mathematical formula: Area = (√3 / 4) × a²

4. Note: If the number of decimal places in the result exceeds the set number of digits, the result will be rounded to the nearest whole number.