1	
     2	public class EquilateralTriangle {
     3	
     4		private int length;
     5	
     6		public EquilateralTriangle(int length) {
     7			this.length = length;
     8		}
     9	
    10		public double getArea() {
    11			return (Math.sqrt(3.0) / 4) * Math.pow(length,2);
    12		}
    13	
    14	}